The highest real capacity in the field.
- Charge capacity 2500mAh, energy 4150mWh
- Consistent and reliable 1.5V output
- Super quick charing time 2.9 hours, with smart LED indicator
- Intelligent safety chip, anti-leakage and multiple protections
- Low-voltage detection function
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Cycle life more than 1200 times
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Why 1.5V Batteries?
Replacing your single-use AA and AAA batteries with rechargeables is a quick and easy way to lower our environmental footprint. The long-lasting power in the latest XTAR Li-ion batteries means that you get improved performance while reducing up to 30 times less pollution compared to alkaline cells. An ultra-stable 1.5V output for heavy-load devices, Super fast charging time of 1.5 hours to full top-up, 1000+ life cycles for exceptional longevitye time.
FAQ about 1.5V AA 4150mWh battery
1. Is the battery safe？
Yes. The rechargeable 4150mWh AA lithium battery is equipped with a built-in 3-in-1 smart chip. It enables intelligent charging and discharging management and multiple protections of over-discharge, short circuit, over temperature and more. Also it has LED indicators for timely charging, full charged and discharge abnormal indication. At the same time, the lithium battery is anti-leakage, anti-corrosion.
Battery capacity (mAh) defines the amount of charge stored by the battery. It is the maximum power that the battery can be used, more useful for the battery runtime. Battery energy (mWh) is the value of mAh multiplied by voltage, which determines what kind of device the battery can drive. It is a dynamic concept. It is the actual power of the battery in a certain state. Just like a reservoir, its storage capacity remains constant, but its actual water volume is dynamic.
A battery with a marked capacity of mAh can emit different amounts of electricity under different discharge currents. The higher the current, the less energy can be released. This is caused by polarization inside the battery. Therefore, when discussing the battery life, you should also consider the discharge rate performance.
Convert the capacity mAh to mWh，it is 2500mAh x 1.5V=3750mWh, not the rated 4150mWh.
What’s the reason:
The formula of “Voltage x mAh capacity=mWh energy”only works on 3.6/3.7V lithium-ion batteries. For the rechargeable 1.5V lithium-ion battery, there is a conversion loss due to the built-in voltage regulator circuit, typically estimated to be around 8% to 10%. Therefore, the discharging energy of the XTAR 4150mWh AA lithium battery is around 4150mWh*90%=3735mWh. That means, the energy after fully charging is 4150mWh, but it would be less in discharging due to the conversion loss.
There are two ways. One is discharging test with professional grading machine or electronic load under constant current, and then calculate the capacity with discharging time integration. The other one is discharging test by connecting a 3 ohm or 5W+ resistor to the terminals of the battery, then calculate the capacity with ampere-hour integral method.
Firstly, the battery must be fully charged. If you test twice but get different results, it may due to the different battery saturation. XTAR’s battery low-voltage detection function is set with the voltage of around 1.1V, and there is some power can be discharged. So the cut-off voltage should be set under 0.8V, to count in the rest power under 1.1V. In addition, the test deviation should also be count in. XTAR’s battery capacity lower limit is 2420mAh at 0.5A.
The discharge operating temperature range for XTAR 1.5V lithium batteries is -20°C to 60°C.
5. Which devices do 1.5V lithium batteries work for and which devices do they not work for?
1.5V lithium batteries are generally suitable for most of the devices that use AA/AAA NiMH and dry batteries, especially those that require fast power consumption and stable power supply, such as wireless microphones, VR controllers, game controllers, RC toys, etc. They are also suitable for devices that are frequently used and require a large number of batteries, such as trail cameras, multimeters, sound mixers, Guitar amplifiers and so on.
1.5V lithium batteries are not suitable for electronic clocks because they have a higher power output, resulting in faster battery consumption and need for frequent battery replacements. Not suitable for radios due to the noise caused by electromagnetic interference.
6. What are the advantages compared with AA NiMH batteries?
Compared with AA NiMH batteries, the main advantage of rechargeable 1.5V AA lithium-ion batteries is their ability to provide a continuous 1.5V high-voltage output, stable performance, fast charging, and no memory effect.
7. What happens when XTAR 4150mWh 1.5V rechargeable lithium battery runs out of power?
The XTAR 4150mWh AA lithium battery has a low-battery reminder function. When you use it on your device that also have the low-battery alert like smart locks, VRs, GPS, you will get the reminder in time. If you use the battery on flashlights, you can also find the light is dimming when the power is low.
The above comparison data comes from the battery comparison test website ¨C Akkuvergleichstest.de
As someone who uses trail cameras in cold Quebec winters, I need batteries that work at -20°C. These XTAR lithium cells perform reliably in extreme cold, and the 1200+ cycle life means I rarely buy disposables anymore.
I use these in my wireless microphone system for live gigs. The stable 1.5V output prevents audio dropouts and the low-voltage detection gives me a timely warning before power runs out. Very impressed with the anti-leakage design.
J'utilise ces batteries XTAR dans la veilleuse de ma chambre. La capacité de 2500 mAh offre une longue autonomie, et la charge rapide de 2,9 heures est très pratique. La conception anti-fuite et la puce de sécurité intégrée me rassurent, car la veilleuse reste allumée toute la nuit près du lit.
I use these XTAR batteries in my gaming mouse and keyboard. The 1.5V output remains stable under heavy load, which is important for competitive gaming. The 1200 cycle life makes them cost-effective and eco-friendly.
I use these XTAR batteries in my electric shaver. The low-voltage detection function gives me a timely reminder before the battery runs out, so I never get caught mid-shave with a dead shaver. The stable 1.5V output keeps the motor running at full speed from start to finish.
The fast 2.9-hour charging is a huge advantage for my photography business. I can fully charge a set during a lunch break. The stable 1.5V output keeps my flash and triggers running consistently throughout a shoot.
I use these in my kids' RC cars and gaming controllers. The built-in safety chip prevents over-discharge and short circuits, which is important when children handle devices. The LED charging indicator is easy to understand. Excellent batteries.
I am quite impressed with these batteries. Given that the voltage sag isn't really gradual, you will have constant power until you reach the end of is charge unlike alkaline or NiMH which gradually sag over their usage. Lithium batteries can withstand much more temperature variations for outdoor use than traditional batteries, they are ideal for wireless cameras, flashlights or any other outdoor or indoor demands.
I have used these XTAR 1.5V AA batteries in my VR controllers for over a month. The 2500mAh capacity and constant 1.5V output keep them running much longer than my old NiMH cells. Charging is fast at about 2.9 hours with a clear LED indicator.
Diese XTAR 1,5-V-AA-Akkus sind ideal für meinen Gamecontroller. Die Ladezeit von nur 2,9 Stunden ist super, und die LED-Anzeige zeigt genau, wann der Akku voll ist. Der eingebaute Schutzchip gibt mir ein sicheres Gefühl gegen Kurzschluss und Überhitzung.
Estas pilas recargables XTAR de 1,5 V mantienen un voltaje constante sin efecto memoria. Las uso en mandos de consola y juguetes de radiocontrol. La carga rápida de 2,9 horas y el indicador LED son muy prácticos. Muy recomendables.
In Singapore's humid climate, battery leakage is a real concern. The anti-leakage and anti-corrosion design of these XTAR batteries gives me confidence. I use them in smart locks and they last significantly longer than alkaline cells.
I bought these for my wireless karaoke microphones. The constant 1.5V output ensures clear sound without distortion. Charging is quick at under three hours and the LED status makes it easy to know when they are ready.
These rechargeable AA batteries are perfect for my RC toys and camera flash. The 4150mWh energy rating is impressive and they perform better than any NiMH battery I've tried. No memory effect means I can top them up anytime.
The low-voltage detection function works exactly as described. My trail camera sent a low-battery alert before the batteries died, so I never missed a shot. The 2.9-hour fast charging is a bonus for outdoor photography.
I tested the actual capacity using an electronic load and got around 2450mAh at 0.5A, very close to the rated 2500mAh. The instructions say to set cut-off voltage below 0.8V, and the results were consistent. Great product.
These 1.5V lithium batteries are excellent for my Xbox controllers. The 2.9-hour fast charge and built-in safety chip give me peace of mind. The stable output prevents the controller from shutting down unexpectedly. Highly recommended.
I use these in a professional audio mixer for church events. The stable 1.5V output avoids noise and signal drops. The cycle life of over 1200 times means less waste and lower long-term cost compared to alkaline batteries.
These XTAR AA batteries are the best rechargeable 1.5V cells I've used. The smart LED indicator changes color when fully charged, and the anti-leakage design protects my expensive photography gear. Charging time is just under three hours.
I've been using these XTAR batteries in my handheld GPS and headlamp for hiking. They perform well in hot and cold conditions, from deserts to alpine trails. The 1200 cycle life means I don't need to carry spares as often.
The difference between mWh and mAh confused me at first, but the product page explains it well. In practice, these batteries last longer than my previous 2000mAh NiMH cells in my trail camera. The 4150mWh energy rating is reliable.
Nice rechargeable batteries,Last Super Longer
I have many of these batteries both AA and AAA, i use the AA in my hand soap dispensers and the low voltage function works really well with them. The lights blinks and there is enough life left to keep using until you see the low battery indicator or get to charge them. Charging is fast in the dedicated charger. The AAA version i use in my wireless remotes as it gives me advance notice they are needing a charge with the low battery indicator on the appliance. You can get caught out with the AAA on some torches as it will not light due to the protection circuit kicking in. Though it is only a couple of torches i tested that did this. These batteries have a low self discharge. I have used 3 other brands and they seem to run out of power in a month on my soap dispensers, these ran a lot longer. I recommend these batteries, they do the job. The low battery voltage output is unique and it works. They last over a year in a torch or remote as they do indeed have a slow discharge. Price is OK. The only issue if getting them. I have had to buy direct now.
Very good! Thank you!
Thanks!