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Ever found yourself stranded with a dead car battery, frantically waving down help while wondering why it died in the first place? You finally get a jump start, breathe a sigh of relief, only to have the same problem recur days later. It’s frustrating, costly, and often preventable. The reality is, a standard jump starter just gets you rolling again – it doesn’t tell you why you were stuck. This is where the next evolution in portable power truly shines: premium jump starters equipped with intelligent diagnostic capabilities. They transform a simple emergency tool into a proactive guardian for your vehicle’s entire electrical system, offering peace of mind far beyond the initial jolt.
Gone are the days when a jump box was merely a capacitor with clamps. Today’s advanced units act like a mini-mechanic in your trunk, constantly analyzing your car’s health. Imagine knowing before you turn the key that your battery is on its last legs, or pinpointing a parasitic drain silently sucking power overnight. These aren’t gimmicks; they’re essential features for modern vehicle owners who value reliability and want to avoid costly breakdowns and unnecessary battery replacements. Investing in a unit with robust diagnostics isn’t just about solving today’s emergency – it’s about preventing the next one, saving you time, money, and significant stress on the road. Let’s explore why this intelligence matters and what to look for.
Top 10 Jump Starter with Diagnostic Features
Detailed Product Reviews
1. GOOLOO A3 Jump Starter with Air Compressor, 3000A Portable Car Battery Booster (9.0 Gas/6.5L Diesel) with 150PSI Auto-Shutoff Tire Inflator, 12V Supersafe Lithium Jump Box Car Battery Jumper Starter
Overview: The GOOLOO A3 is a versatile 3000A portable jump starter with integrated air compressor, designed for 12V vehicles up to 9.0L gas engines. It combines jump-starting, tire inflation, and emergency power in one compact unit rated for extreme temperatures (-4°F to 140°F).
What Makes It Stand Out: Its seamless integration of 5 inflation modes (SUV, car, bike, ball, custom) and 150PSI auto-shutoff compressor sets it apart, inflating a Tesla tire from 30 to 36 PSI in under a minute. The 7-in-1 functionality—including power bank, LED flashlight, and digital pressure gauge—enhances utility without bulk.
Value for Money: Priced mid-range, it outperforms basic jump starters by eliminating the need for separate tire inflators or power banks. While competitors offer higher amps, its reliability (1,000+ cycles) and weather resistance justify the cost for daily drivers.
Strengths and Weaknesses: Strengths: Intuitive smart screen, robust safety suite (10 protections), and multi-nozzle versatility. Weaknesses: Lower max PSI (150 vs. 180 in rivals) and limited to smaller diesel engines (6.5L).
Bottom Line: An excellent all-in-one solution for urban commuters and road trippers needing reliable jump-starting and tire inflation. Ideal for those prioritizing convenience over extreme diesel capability.
2. PJS06 Pro 4000A Car Jump Starter - Portable Power Bank with 40W Fast Charge, 10L Gas/9L Diesel Engine Starter, 3S Quick Start, Voltage Detector, LED Light, 10 Protections
Overview: The PJS06 Pro delivers 4000A peak current for robust jump starts on 10L gas or 9L diesel engines, featuring a rapid 1.7-hour recharge and 40W power bank capabilities. Its industrial-grade clamps and 10-layer safety system target heavy-duty reliability.
What Makes It Stand Out: The dual-display system—one smart LCD for diagnostics and oversized warning lights—provides unmatched real-time feedback. The 0.1V precision battery diagnostic and 40W fast-charge power bank (charging phones 3x faster) are standout innovations.
Value for Money: Though pricier, its 35% stronger jump power (vs. 3-cell models), 1,500+ recharge cycles, and versatile emergency lighting (replacing reflective triangles) offer long-term savings. Outperforms similarly priced units in speed and safety.
Strengths and Weaknesses: Strengths: Exceptional 3-second starts, UL94-V0 fireproof housing, and multi-device charging. Weaknesses: Requires separate 40W charger for rapid recharging; bulkier than ultra-compact rivals.
Bottom Line: A top-tier choice for professionals and frequent travelers needing military-grade durability, diagnostic precision, and rapid power delivery. Worth the investment for heavy-use scenarios.
3. JOLTEKON Car Battery Jump Starter with Air Compressor 4500A 150PSI, Car Jumper Starter Portable (9L Gas/8L Diesel), Jump Box Car Battery with Auto-Shutoff Tire Inflator, Jumper Cables and Light
Overview: The JOLTEKON 4500A jump starter tackles dead batteries in extreme cold (-20°C) and inflates tires to 150PSI via a 19-cylinder motor. Its 8-in-1 design merges jump-starting, lighting, and power bank functions into a portable emergency kit.
What Makes It Stand Out: The “Force Start” function revives completely drained batteries where others fail, while the 500LM emergency lights (400% brighter than peers) double as warning strobes. Its 5 inflation modes with auto-memory and detachable hose enhance usability.
Value for Money: Competitive pricing for its 4500A output and cold-weather reliability. The 24-month standby time and 1,000+ cycles reduce replacement costs, though the compressor lags slightly behind Product 4’s 180PSI capability.
Strengths and Weaknesses: Strengths: Unmatched cold-weather performance, versatile lighting (SOS/strobe), and compact storage. Weaknesses: Power bank output (5V/1A) is slower than Product 2’s 40W; hose requires manual attachment.
Bottom Line: A rugged, cold-climate specialist ideal for adventurers and off-roaders. Prioritize this if extreme temperatures or emergency visibility are critical concerns.
4. Jump Starter with Air Compressor, 8000A Car Battery Jump Starter (9.0 Gas/8.0L Diesel), 180PSI Car Battery Jumper Starter Portable 12V Jump Box with Jumper Cables, LED Light, Power Bank, LCD Display
Overview: This powerhouse delivers 8000A peak current for large 9.0L gas/8.0L diesel engines, paired with an 180PSI compressor and 20,000mAh power bank. Its auto-shutoff inflation and real-time pressure monitoring target precision and safety.
What Makes It Stand Out: Industry-leading 8000A output ensures reliable starts for heavy trucks or RVs, while the 180PSI compressor inflates tires 20% faster than 150PSI models. The intuitive LCD with backlighting and detachable hose simplifies roadside use.
Value for Money: Premium pricing is justified for commercial/fleet use—50 jumps per charge and 10 safety protections minimize downtime. Beats similarly priced units in raw power but lacks Product 2’s rapid charging.
Strengths and Weaknesses: Strengths: Highest PSI rating, multi-vehicle compatibility, and robust safety suite. Weaknesses: Heavier than competitors; power bank lacks fast-charging (max 18W).
Bottom Line: The ultimate tool for truckers and towing professionals needing brute-force jump starts and high-pressure inflation. Avoid if portability is your top priority.
5. M1 Car Battery Jump Starter with Air Compressor 4500A 150PSI (9.0 L Gas/8.0L Diesel), Portable Car Jump Starter Power Pack, Battery Charger 12V Jump Box with LED Light, Large LED Display, Power Bank
Overview: The VANXIPOW M1 packs 4500A output into an ultra-light 554g chassis, supporting 9.0L gas/8.0L diesel engines. Its honeycomb cooling design and LCD pressure display prioritize safety and usability in compact form.
What Makes It Stand Out: Patented honeycomb cooling reduces operating temps by 50% versus predecessors, preventing overheating during repeated jumps. The large, readable display shows real-time pressure and power levels clearly in sunlight.
Value for Money: Budget-friendly for its 4500A rating and cold-weather resilience (-20°C). The 150PSI compressor inflates tires rapidly, though it trails Product 4’s 180PSI. Ideal for cost-conscious buyers needing reliability.
Strengths and Weaknesses: Strengths: Lightweight portability, innovative heat dissipation, and misconnection alarms. Weaknesses: Single USB port limits device charging; slower power bank output (max 18W).
Bottom Line: A smart pick for daily drivers seeking a lightweight, cool-running jump starter with solid all-weather performance. Best for those valuing portability over multi-device charging.
6. Battery Jumper Starter Portable, 5000A Jump Starter with Air Compressor(7.0L Gas/ 6.0L Diesel) with 160PSI Tire Inflator, 12V Jumper Box Car Battery Jump Starter, Car Accessories Emergency Kit
Overview: This 5000A peak portable jump starter tackles dead batteries and flat tires in one rugged unit. Designed for 12V vehicles up to 7.0L gas or 6.0L diesel engines, it combines jump-starting, tire inflation, and emergency power in extreme temperatures (-4°F to 140°F). Its integrated air compressor and safety features target drivers needing reliable roadside solutions.
What Makes It Stand Out: The Forced Start function revives critically low-voltage batteries where competitors fail, while the 160PSI air compressor achieves precise inflation in under a minute with auto-shutoff. Honeycomb cooling reduces overheating risk by 30% during extended use, and 10 intelligent protections (including spark-free clamps) make it exceptionally beginner-friendly.
Value for Money: Priced mid-range, it outperforms basic jump starters by integrating a high-speed tire inflator and robust safety suite. While cheaper models omit air compressors, this justifies its cost through dual emergency functionality and durable ABS/EVA construction for frequent travelers.
Strengths and Weaknesses:
Strengths: Ultra-fast tire inflation with preset modes; Forced Start for near-dead batteries; Excellent thermal management; Intuitive safety indicators.
Weaknesses: 10,000mAh capacity limits device charging; No LCD pressure display (relies on presets).
Bottom Line: Ideal for drivers prioritizing tire inflation reliability and extreme-weather resilience. Its forced-start capability and cooling system make it a top pick for road trips, despite modest power-bank capacity.
7. Car Jump Starter with Air Compressor 4000A Peak Battery Jump Starter 12V 150PSI Jump Box (up to 9L Gas,7.0L Diesel Engine) Auto Booster,LED Light & 15000MA with USB Quick Charger and Type C
Overview: A versatile 4000A jump starter supporting engines up to 9L gas/7L diesel, featuring a 150PSI air compressor, 15,000mAh power bank, and multi-mode LED. Engineered for -4°F to 140°F operation, it targets users needing frequent jump-starts (up to 50 per charge) alongside device charging and tire inflation.
What Makes It Stand Out: The large LCD displays real-time pressure with 4-unit support (BAR/PSI/KPA), while 65W fast charging (via Type-C) refuels the unit in hours. Its 15,000mAh capacity powers devices longer than rivals, and IP64-rated durability ensures reliability in dust/rain during outdoor use.
Value for Money: At a competitive price, it delivers exceptional capacity and charging speed. The included 24-month warranty and comprehensive kit (4 nozzles, multiple cables) offer better long-term value than stripped-down alternatives, especially for heavy users.
Strengths and Weaknesses:
Strengths: Industry-leading 15,000mAh capacity; Bright LCD pressure monitoring; Fast 65W charging; UL/FCC/CE safety certifications.
Weaknesses: Slower airflow (26L/min) than Product 6; Bulky for glove-box storage.
Bottom Line: Best for tech-savvy drivers needing device charging endurance and precise tire inflation. Its fast recharge and robust warranty make it a cost-effective daily driver despite slightly slower inflation.
8. Sharmeal Car Jump Starter 5000A, Jump Starter Battery Pack for 10.0L Gas and 9.0L Diesel, 12V Portable Jump Box with LED Light
Overview: A compact 5000A jump starter rated for large engines (10.0L gas/9.0L diesel), emphasizing simplicity and safety. It includes a bright 800-lumen LED but notably lacks an integrated air compressor, focusing solely on jump-starting and emergency power for vehicles like RVs or tractors.
What Makes It Stand Out: Its 14-layer safety suite (including reverse-polarity and spark-proof clamps) exceeds most competitors, while the traffic-light clamp indicator simplifies connections for novices. The ultra-bright 800-lumen flashlight with 48-hour runtime outshines rivals for night emergencies.
Value for Money: Priced affordably, it delivers high amperage for large engines but sacrifices tire inflation. Budget-conscious buyers needing only jump-starting will appreciate its robust protections, though missing compressor limits versatility versus similarly priced models.
Strengths and Weaknesses:
Strengths: Unmatched 14 safety protections; Excellent 800-lumen flashlight; Lightweight for high-amperage class; Simple clamp indicators.
Weaknesses: No built-in air compressor; Lower 10,000mAh capacity; Dual USB ports lack fast charging.
Bottom Line: A solid budget choice for RV/truck owners prioritizing safety and lighting, but avoid if tire inflation is essential. Its clamp indicators ease beginner anxiety despite missing key features.
9. NOCO Boost GB40: 1000A UltraSafe Jump Starter – 12V Lithium Battery Booster Pack, Portable Jump Box, Power Bank & Jumper Cables - for 6.0L Gas and 3.0L Diesel Engines
Overview: The premium NOCO GB40 offers 1000A peak power for smaller engines (up to 6.0L gas/3.0L diesel) in a minimalist 2.5lb design. Renowned for safety, it excels as a glove-box essential for daily commuters, featuring rapid 3-hour recharging and a precision LED flashlight.
What Makes It Stand Out: Patented Ultrasafe Technology prevents sparks and reverse-polarity damage—a rarity in this class. Its ultra-compact size (smaller than most power banks) and 7-mode 100-lumen LED (with precise SOS strobing) prioritize emergency readiness over raw power.
Value for Money: Commands a premium price but justifies it through unmatched safety engineering and portability. While lower-capacity than rivals, its reliability for 20 starts per charge makes it worth the investment for urban drivers with smaller vehicles.
Strengths and Weaknesses:
Strengths: Foolproof Ultrasafe connections; Extremely compact (fits in glove box); Fast 3-hour recharge; Bright multi-mode flashlight.
Weaknesses: Limited to smaller engines (3.0L diesel); Lower 1000A peak current; No air compressor.
Bottom Line: The top recommendation for sedan/SUV owners seeking a no-fail, always-ready emergency tool. Avoid for large trucks, but ideal for hassle-free urban reliability.
10. AVAPOW 6000A Car Battery Jump Starter(for All Gas or up to 12L Diesel) Powerful Car Jump Starter with Dual USB Quick Charge and DC Output,12V Jump Pack with Built-in LED Bright Light
Overview: A high-output 6000A jump starter claiming “2-second starts” for all gas and massive 12L diesel engines. It includes DC output, quick-charge USB ports, and a cigarette lighter adapter, targeting commercial fleets or off-road users needing extreme power in harsh conditions.
What Makes It Stand Out: Unmatched 6000A peak current supports the largest diesel engines on the market. The included cigarette lighter adapter enables jump-starting without hood access, while 5V/3A USB-C charging refuels devices 50% faster than standard ports.
Value for Money: Mid-priced for its class, it delivers exceptional amperage and unique DC/cigarette-lighter versatility. Fleet managers gain value from rapid starts and included storage case, though casual users may find it overpowered.
Strengths and Weaknesses:
Strengths: Highest 6000A capacity (12L diesel); Cigarette lighter adapter convenience; 50% faster USB charging; 8 safety protections.
Weaknesses: No air compressor; AC adapter sold separately; Bulky for frequent glove-box storage.
Bottom Line: Essential for heavy-duty truck/RV owners needing brute-force starting power. Skip if you drive smaller vehicles, but unmatched for commercial or off-road diesel reliability.
Understanding the Core Value of Diagnostic Jump Starters
Beyond Basic Jump Starting: The Diagnostic Difference
Standard portable jump starters deliver a surge of power to crank your engine. Diagnostic models go significantly further. They incorporate sophisticated circuitry and sensors that interact with your vehicle’s electrical system before, during, and after the jump process. This allows them to assess critical health indicators, providing actionable insights rather than just a temporary fix. It’s the difference between a band-aid and a full medical checkup for your car’s electrical heart.
Why Reactive Fixes Aren’t Enough Anymore
Relying solely on a jump to solve a dead battery is often treating the symptom, not the disease. Modern vehicles have complex electrical networks powering everything from infotainment to advanced safety systems. A single dead battery could signal a failing alternator, a parasitic drain, a corroded terminal, or simply an aged battery nearing the end of its life. Without diagnostics, you’re left guessing, potentially facing repeated failures or more severe damage down the line. Proactive diagnosis is key to true reliability.
Essential Diagnostic Capabilities to Prioritize
Real-Time Voltage Monitoring and Analysis
The cornerstone of any diagnostic jump starter is accurate, real-time voltage measurement. Look for units that don’t just show a number but interpret it clearly (e.g., “Good,” “Weak,” “Replace Soon,” “Critical”). This goes beyond a simple multimeter reading; it assesses the battery’s state under load, giving a true picture of its ability to start the car, especially in cold weather when batteries are most vulnerable.
Intelligent Short Circuit and Reverse Polarity Detection
Safety is paramount. Advanced units continuously monitor for dangerous conditions before connecting. They instantly detect if clamps are reversed (positive to negative) or if there’s a short circuit in your vehicle’s system, preventing sparks, damage to the jump starter, or worse – damage to your car’s sensitive electronics. This feature provides crucial peace of mind, especially for less experienced users.
Parasitic Drain Identification
This is a game-changer. A parasitic drain occurs when something in your car (like a faulty module, glovebox light, or aftermarket accessory) continues to draw power even when the car is off, slowly killing the battery. Premium diagnostic starters can measure this small, continuous current draw over time, alerting you to a hidden problem that would otherwise cause mysterious, repeated battery failures weeks or months later.
Power and Performance Considerations
Sufficient Cranking Amps for Modern Engines
Don’t sacrifice raw power for diagnostics. Ensure the unit offers ample peak amps (often 1000A+) and sufficient cold-cranking amps (CCA) rating to handle your specific vehicle, especially larger trucks, SUVs, or vehicles in cold climates. Diagnostics are useless if the unit can’t reliably start your engine when needed most. Check compatibility carefully against your engine size.
Reliable Lithium-Ion Technology and Capacity
Lithium polymer (LiPo) or lithium iron phosphate (LiFePO4) batteries are standard in premium units. LiFePO4 offers superior safety, longer cycle life (2000+ charges), and better performance in extreme temperatures, though often at a higher cost. Capacity (measured in watt-hours or amp-hours) dictates how many jumps you can perform on a single charge and how long the unit holds a charge in storage – crucial for an emergency tool you might not use for months.
Multiple Charging Methods and Portability
Prioritize units with versatile charging: standard wall adapter, 12V car socket (for maintaining charge while driving), and crucially, fast charging capability (e.g., USB-C PD). Portability matters too – a balance between sufficient power/capacity and a size/weight you’ll actually keep in your vehicle. Integrated handles or compact designs enhance usability.
Safety, Durability, and User Experience
Comprehensive Safety Protections Beyond Basics
Beyond reverse polarity and short circuit detection, look for robust safety suites. This should include over-current protection, over-charge protection, over-discharge protection, and high-temperature shutdown. Quality units also feature spark-proof technology and rugged, insulated clamps designed to prevent accidental contact. These layers of safety are non-negotiable for protecting both you and your vehicle.
Ruggedized Build Quality for Real-World Use
This tool lives in your trunk – it needs to withstand temperature extremes, bumps, and occasional drops. Prioritize units with durable, impact-resistant housings (often rubberized or with reinforced corners), secure clamp storage, and weather-resistant (though not necessarily waterproof) construction. Check for IP ratings if you anticipate harsh conditions.
Intuitive Display and Clear User Guidance
A diagnostic unit is only as good as its interface. A bright, easy-to-read LCD or LED display is essential, showing voltage levels, diagnostic results, charge status, and safety warnings clearly, even in bright sunlight. Simple, unambiguous icons and text instructions (not buried in a manual) are vital during a stressful roadside situation. Avoid overly complex menus.
Practical Integration into Your Vehicle Care Routine
Proactive Battery Health Monitoring
Use your diagnostic jump starter regularly, not just when stranded. Check your battery voltage monthly, especially before long trips or seasonal changes. Tracking gradual voltage decline provides early warning of a weakening battery, allowing planned replacement before you’re stranded in a parking lot. Make it part of your routine vehicle check.
Diagnosing After a Jump Event
After successfully jump-starting your car, don’t just drive away. Use the diagnostic features to check the battery voltage while the engine is running. This verifies if the alternator is charging correctly. A low reading here points directly to an alternator issue, a critical diagnosis that prevents you from driving until the battery dies again miles from help.
Verifying Repairs and Preventing Future Issues
After replacing a battery or fixing an electrical issue, use the diagnostic starter to confirm the system is healthy. It can also help identify if a new aftermarket accessory is causing an unexpected drain. Think of it as your ongoing electrical system verifier, ensuring repairs were effective and catching new problems early.
Maximizing Longevity and Reliability of Your Investment
Proper Storage and Maintenance Practices
Lithium batteries degrade if stored fully charged or fully depleted. For long-term storage (over a month), maintain the jump starter at around 50-60% charge. Store it in a cool, dry place, not in extreme heat (like a hot trunk in summer) or freezing cold for extended periods. Recharge it every 3-6 months if not in use to maintain battery health.
Understanding Charge Cycles and Lifespan
Premium LiFePO4 units boast significantly longer lifespans (often 3-5 years or 2000+ cycles) compared to older LiPo tech. Be aware of the expected cycle life when purchasing. A unit that holds a charge for months and survives hundreds of jumps is worth the premium over a cheaper unit that degrades quickly, especially for emergency use where reliability is critical.
Calibration and Firmware Updates (If Applicable)
Some high-end diagnostic units may offer firmware updates via USB or Bluetooth to improve diagnostics or add features. While not universal, this is a sign of a forward-thinking design. Check if the manufacturer provides support for potential future enhancements to your device’s capabilities.
Frequently Asked Questions
How do diagnostic jump starters actually test my car battery?
Diagnostic units measure the battery’s voltage under a small simulated load, assessing its ability to deliver power. They interpret this reading (e.g., “Good,” “Weak,” “Replace”) based on industry standards, giving a practical health indicator beyond a simple static voltage number.
Can a diagnostic jump starter replace a professional mechanic’s diagnosis?
No. While they provide valuable insights into basic battery and charging system health (voltage, potential drains), they cannot diagnose complex engine management, transmission, or deep electrical faults. They are excellent for initial triage and common electrical issues but not a substitute for professional OBD2 scanners or mechanic expertise.
Are the diagnostics accurate enough to trust?
Reputable premium units use calibrated sensors and provide generally reliable assessments for battery state-of-charge and major issues like severe drain or charging failure. They are accurate for their intended purpose – giving you actionable emergency and maintenance info. For precise milliamp measurements of tiny drains, a dedicated multimeter might be needed, but the jump starter identifies if a significant drain exists.
Will using the diagnostic features drain my car battery further?
The diagnostic check itself uses minimal power – typically far less than turning on your headlights. It’s designed to be a quick, low-power assessment. The significant drain occurs if a problem (like a parasitic drain) already exists in your vehicle, which the unit is helping you discover.
Do I need diagnostics if I have a new car with a warranty?
Yes. Even new cars can develop electrical gremlins or suffer from manufacturing defects. Diagnostics help you catch issues early, potentially during the warranty period, before they cause major breakdowns or damage other components. It empowers you with information when dealing with service departments.
How often should I check my battery with the diagnostic feature?
Perform a quick voltage check monthly as part of routine maintenance. Do a more thorough check (including looking for parasitic drain if symptoms suggest it) before long trips, after seasonal changes (especially before winter), or if you notice any starting difficulties or electrical quirks.
Can these units diagnose the alternator?
Indirectly, yes. By measuring the battery voltage while the engine is running, a diagnostic jump starter can indicate if the alternator is charging the system adequately (typically 13.5V - 14.8V). A significantly lower reading strongly suggests an alternator problem, providing crucial initial diagnosis.
Is LiFePO4 technology worth the extra cost over standard LiPo?
For most drivers, especially those prioritizing safety and longevity for an emergency device, yes. LiFePO4 is significantly more stable (less fire risk), lasts 2-3 times longer in charge cycles, performs better in temperature extremes, and holds its charge longer in storage. The higher upfront cost is often justified by years of reliable service.
What’s the most important safety feature to look for?
Comprehensive protection – specifically, automatic reverse polarity detection and shutdown, combined with short circuit protection. These prevent user error from causing dangerous sparks or damage the moment clamps are connected incorrectly, which is vital for safety and preventing costly car repairs.
Can I use the diagnostic features without performing a jump start?
Absolutely. This is a key benefit. You can connect the clamps to your battery (ensuring correct polarity!) solely to run diagnostics – checking voltage, testing for parasitic drain, or verifying alternator output – without ever initiating a jump. It’s a valuable standalone health check tool.
See Also
- 10 Premium Jump Starters with Diagnostic Features for Luxury Vehicles (Worth the Investment)
- 10 Premium Jump Starters with Diagnostic Features for Luxury SUVs (Worth the Investment)
- 10 Game-Changing Jump Starters with Diagnostic Features for Emergency Use in 2026
- 10 Best Budget Jump Starters with Diagnostic Features Under $100 for Emergency Use
- 10 Premium Jump Starters for Luxury Vehicles (Worth the Investment) in 2026