Cookies and audience measurement
We use Google Analytics to measure how the site is used and to improve our content. It only loads with your consent: you can decline at no cost and change your mind at any time. Privacy policy
This post contains affiliate links. As an Amazon Associate we earn from qualifying purchases.
Our picks are based on Amazon bestseller rankings, Amazon customer ratings, and product availability. We update our recommendations regularly to ensure accuracy.
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...
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...
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.
【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.
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...
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.
Last update on 2026-10-15 / 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.
As an Amazon Associate, we earn from qualifying purchases. Product prices and availability are accurate as of the date/time indicated and are subject to change.
Before You Go!
Get the latest deals and product comparisons delivered to your inbox.
