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Choosing the right 3.7V batteries is crucial for the performance and longevity of your electronic devices. Whether powering a portable speaker, a vape mod, or a DIY project, the battery's quality directly impacts reliability and safety. Understanding key specifications ensures you select cells that meet your device's demands and provide consistent power.
Real capacity is 500mAh-800mAh, 3.7 volt lithium battery connector plug: SM-2P black 2 pin, plug end cross-section size:5.5*5.2mm/ 0.22*0.195inch, 1S li-ion battery fit for some small size Stunt RC Car and some kind 1/18 scale RC Cars. 3.7V 500mAh...
USB cable built-in over-charged protection board, it would stop after full charged, some red light are not off after full charged, you can reconnect again,red light would be off if full charged. It most take 3-4 hours can full charged.. 3.7v rechargeable...
There is 8.5A over current protection circuit on this battery. 3.7V 500mAh Li-ion battery replacment for Small Size RC Cars RC Boat RC Trucks , battery replacement for some kind Small Amphibious RC Stunt car. 3.7V 500mAh battery fit for some kind...
3.7V 500mAh-800mAh Li-ion batteryr replacement for some small size Drift RC Car. Battery replacement for some version DEERC DE70 DE42 DE45 DE68 DE69 Remote control Cars, battery replacement for some old version BEZGAR TD141 ransform RC Cars, battery...
3.7V 500mAh-800mAh Li-ion rechargeable battery replacement for some kind of Small size RC Boat,which use same plug and voltage. Battery replacement for some kind 2 IN 1 Small RC Boat, Battery replacement for some Wave Speeder Small size RC Boat, Battery...
3.7V 500mAh-800mAh Battery suitable for some kind 360° Stunt RC Car. 3.7V 500mAh Battery suitable for some kind remote control stunt car, 3.7V mAh Li-ion battery suitable for Threeking Double-sided RC Stunt Cars, which battery size, voltage and plug all...
3.7V 500mAh-800mAh Battery suitable for some small senstor Transform Stunt Car. 3.7V 500mAh battery suitable for some stunt Car. 3.7v 500mah battery suitable for some kind Remote Control Gesture Sensor Stunt Car., which battery size, voltage and plug all...
3.7V 500mAh-800mAh Li-ioni battery suitable for some kind 1:16 Remote Control Car. 3.7v 500mAh Li-ion rechargeable battery suitable for some kind 1:18 Scale RC Car, , which battery size, voltage and plug all match. Battery sutiable for battery sutiable...
3.7V 500mAh-800mAh 1.85Wh Li-ion replacement battery spare parts suitable for some old version 3855 Amicool G03080R Double Sided 360° flip RC stunt Cars. 3.7V 500mAh Li-ion Battery suitable for some old version Yezi 11821 Remote Control Dinosaur Car RC...
3.7V 500mAh-800mAh Lithium battery suitable for some kind of bubble gun, which use same kind of battery. 3.7V 500mAh Li-ion battery compatible with some kind of Gesture Transform RC Drift Cars, which use same kind of battery.
Battery Specifications：Dimensions: 36*10*65mm/ 1.42*0.39*2.56inch;Battery Weight(Single): 49g; Capacity: 3000mAh; Plug: JST1.25; Discharge Rate: 1C. Make Sure Device Polarity Matches with Battery Pack Connector Before Purchase.1.Battery Size...
Reliable Performance: Our 3.7 volt rechargeable lithium polymer battery provides reliable performance with long life. It is no fire, no explosion or no leakage after vibration and collision.Each lipo battery comes equipped with a built-in protection board...
Application：Our batteries are perfect for ESP3 projects or a small Internet of Things (IoT) project. Also suitable for battery replacement of DIY 3.7V electronic products, mobile energy storage, power supply, LED light, wireless Bluetooth game headset...
Storage & Usage：When storing lithium polymer batteries for a long time, please keep the battery in a state of 40%-60%. We recommend to charge the battery every 3 months receipt of the battery and maintain the voltage 3.7-4.0V. Store battery in cool and...
Easy Installation with Micro JST1.25 Connector: The 3000mAh lithium polymer battery feature a Micro JST1.25 connector and a wire of about 70mm, making installation simple and convenient. Upgrade your devices effortlessly with our user-friendly design...
Compatibility: Please open your calculator to carefully check the compatible battery model and part number before purchasing. Compatible with TI-84 Plus CE Replacement battery, part number: 3.7L1200SPA/3.7L12005SPA, P11P35-11-N01.
Safety protection: TI-84 Plus CE replacement battery built-in intelligent chip, with multiple protection, prevent equipment overcharge, overheating, short circuit, to ensure battery charging safety, extend battery life.
Easy installation: TI-84 Plus CE battery replacement comes with installation tool, plug and play, no complicated installation steps, accurate process, fully compatible with your calculator.
Quality service: Your satisfaction is very important to us, if you have any questions, please feel free to contact us, we will reply as soon as possible within 24 hours.
【Product Size】: L*W*H:26*26*65mm/1.02*1.02*2.56 inch, please confirm the battery type of your device.
【Wide application】: 3.7V rechargeable battery can be widely used for electronic devices, such as LED flashlights, emergency lights, power bank, headlights, RC toys, remote controls, digital camera, etc.
【Long-lasting and rechargeable】: This 3.7V rechargeable battery can provide you with the necessary charging power source or better help you in emergencies such as travel, emergencies, outdoor adventures, camping and so on.
【Multiple protections】: 3.7V rechargeable battery provides 6 protections, such as temperature protection, short circuit protection, overcharge protection, and overcurrent protection to stabilize the battery.
【Safe and environmentally friendly】 No memory effect, so no need worry more about your device without power.
Battery Specifications：Dimensions: 36*10*65mm/ 1.42*0.39*2.56inch;Battery Weight(Single): 49g; Capacity: 3000mAh; Plug: JST1.25; Discharge Rate: 1C. Make Sure Device Polarity Matches with Battery Pack Connector Before Purchase.1.Battery Size...
Reliable Performance: Our 3.7 volt rechargeable lithium polymer battery provides reliable performance with long life. It is no fire, no explosion or no leakage after vibration and collision.Each lipo battery comes equipped with a built-in protection board...
Application：Our batteries are perfect for ESP32 projects or a small Internet of Things (IoT) project. Also suitable for battery replacement of DIY 3.7V electronic products, mobile energy storage, power supply, LED light, wireless Bluetooth game headset...
Storage & Usage：When storing lithium polymer batteries for a long time, please keep the battery in a state of 40%-60%. We recommend to charge the battery every 3 months receipt of the battery and maintain the voltage 3.7-4.0V. Store battery in cool and...
Easy Installation with Micro JST1.25 Connector: The 3000mAh lithium polymer battery feature a Micro JST1.25 connector and a wire of about 70mm, making installation simple and convenient. Upgrade your devices effortlessly with our user-friendly design...
Must Confirm 4 Factors Before Purchase: This 3.7V 250mAh LiPo is NOT universal. Verify: (1) size 20.5×32×5.3mm, (2) connector model, (3) connector pin size, (4) +/- polarity alignment. Wrong polarity = short circuit. Check red/black wires vs your...
250mAh LiPo Performance: Typical 250mAh (min 230mAh), 3.7V, 5g. No leaking, low internal resistance, 500+ cycle life. Reliable rechargeable lithium polymer battery for compact portable electronics.
PCM Safety and Certifications: Built-in PCM protection against overcharge, over-discharge, over-current, short circuit. UL, IEC62133-2 certified, and UN38.3 compliant for safe air/sea shipping. 400+ EEMB models UL listed – search "MH20555" on UL...
Storage Guide: Keep at 40%-60% charge during long-term storage; recharge every 3 months to maintain 3.7-4.0V. Store in cool & dry place (below 25°C) to maximize lifespan.
Wide Compatibility: Ideal for Bluetooth speakers, dash cams, keyboards/mice, Wi-Fi smart home, PDA, GPS, digital cameras, e-books, trackers, telematics, sleep monitors, blood oxygen/pULse oximeters, and IoT devices.
Last update on 2026-08-31 / Affiliate links / Images from Amazon Product Advertising API
How to Choose the Best 3.7V Batteries
Capacity (mAh)
Capacity, measured in milliampere-hours (mAh), indicates how much charge a battery can hold. Higher mAh means longer runtime between charges.
Consider the device's power consumption. High-drain devices require batteries with sufficient capacity to avoid frequent recharging.
Discharge Rate (C-Rating)
The C-rating denotes the maximum safe discharge current a battery can deliver. A higher C-rating is essential for devices that draw a lot of power quickly, such as high-performance vapes or power tools.
Using a battery with an insufficient C-rating can lead to overheating, reduced performance, and potential damage.
Chemistry and Safety Features
Lithium-ion (Li-ion) is common, but variations exist. Ensure the battery has built-in protection circuits (PCB) to prevent overcharging, over-discharging, and short circuits.
Always use a charger specifically designed for your battery type and chemistry.
Frequently Asked Questions
What does 3.7V mean for a battery?
The 3.7V rating refers to the nominal voltage of a single lithium-ion cell. This is the standard voltage when the battery is partially charged and represents its typical operating voltage.
How do I know if a 3.7V battery is compatible with my device?
Check your device's manual or original battery for voltage and physical size requirements. Ensure the replacement battery matches the specified voltage and fits correctly within the device's compartment.
What is the difference between protected and unprotected 3.7V batteries?
Protected batteries have a small circuit board (PCB) that prevents overcharging, over-discharging, and short circuits, enhancing safety. Unprotected batteries lack this circuit and require careful handling and external management.
How should I store 3.7V batteries when not in use?
Store batteries in a cool, dry place, away from direct sunlight and extreme temperatures. For long-term storage, it's often recommended to keep them at around 50% charge to prolong their lifespan.
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