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.
Looking for the best 3.7V Batteries?
Discover now our comparison of the best 3.7V Batteries. It is never easy to choose from the wide range of offers. On the market, you will find an incalculable number of models, all at different prices. And as you will discover, the best 3.7V Batteries are not always the ones at the highest prices! Many criteria are used, and they make the richness and relevance of this comparison.
To help you make the best choice among the hundreds of products available, we have decided to offer you a comparison of the 3.7V Batteries in order to find the best quality/price ratio. In this ranking, you will find products listed according to their price, but also their characteristics and the opinions of other customers. Also discover our comparisons by categories. You won’t have to choose your products at random anymore.
SaleNo. 1
EBL 2 Pack 18J-TC Lithium Batteries, 3.7V 11100mWh High Capacity Rechargeable Li-ion Battery with USB C Cable...
- 【High Performance Power】EBL 3.7V lithium batteries, high energy density lithium-ion battery cell, 3000mAh ultra high capacity, provides stable power and long run time.
- 【Multifunctional Battery】EBL Li-ion Batteries, 3.7V regulated voltage, ideal for tactical flashlights, toys, headlamps, remote control car, battery powered fans, and other household equipment.
- 【USB Type-C Fast Charging】EBL USB rechargeable lithium batteries, with fast charging technology, built-in USB Type-C port, can be easily charged with the included Type C data cable, no additional battery charger required.
- 【Long Battery Life】Lithium-ion batteries, recharge up to 1200 cycles, 3000mAh high capacity, longer lasting than alkaline batteries, no need to buy batteries frequently.
- 【Security Protection Mechanism】Built-in security integrated circuit, protect the battery from over charging, over discharging, over heating and short circuit, to ensure the complete safety of battery charging. (NOTE: BATTERY SIZE IS 18.58*67mm±0.3mm...
−50%
$19.99
Buy On Amazon
No. 2
CPZZ 3.7V 4 Pack Button Top 18650 Rechargeable Batteries with 4 Bay Battery Charger for...
- Complete Power Kit - 4 Batteries & 4-Bay Charger: This set includes four 18650 button top batteries and a smart 4-bay charger. The charger supports 10440, 14500, 16340, 16650, 14650, 18350, 18500, and 18650 batteries. All you need for reliable power in...
- Button Top Design for Compatible Devices: These button top 18650 batteries work with flashlights, headlamps, doorbells, toys and other electronics. Please verify your device requires button top (not flat top) batteries before ordering.
- Safety Protection & LED Charging Indicators: Each battery has built-in protection against overcharging and short circuits. The charger features red/green LED indicators: red means charging, green means fully charged. It automatically stops when batteries...
- High Capacity & Long-Lasting Power: With 9900mAh capacity, these 18650 rechargeable batteries provide extended runtime for your devices. They support many recharge cycles with no memory effect. Having four batteries ensures you always have backup power...
- Versatile Charging & Great Value: The 4-bay charger handles up to four batteries at once and supports different sizes. Simply insert batteries and connect to power. Store batteries in a cool, dry place. This complete kit offers excellent value for all...
No. 3
NERMAK 3.7V 3200mAh USB Rechargeable Lithium lon Battery for Flashlights, Headlamps, Bike Lights, Bluetooth...
- 【Size Parameters】3.7V 3200mAh lithium batteries, size: 18mm(0.7 inch) diameter x 70mm(2.7 inch), (Note: they are longer than the flat-top batteries, please check the battery size before purchasing)
- 【Superior Performance】：Built-in USB-C port, support C-C output, you can charge your cell phone and other devices in case of emergency, easy to charge with the included 2-in-1 USB cable, no need for an additional battery charger (does not support PD...
- 【Widely Uses】：NERMK 3.7V rechargeable batteries are suitable for flashlights（High-power flashlights are not suitable）, headlamps, remote controls, microphones, radios, bike lights, bluetooth speakers, and other household devices.
- 【Safe and Efficient】: NERMAK 3.7V battery has built-in safety protection against overcharging, over-discharging, over-current and short-circuit, with 1500+ charging cycles for longer service life, making it an ideal replacement battery for...
- 【Warm Note】: 2* 3.7 Volt Replacement lithium ion battery，12 months warranty, If you have any question for our product, Contact us: click the "Ask a question" on our storefront or in "YOUR ORDER" options click the "contact seller"
No. 4
3.7 USB Battery Charger with 2 Pack 3,7 2200mAh Button Top Battery Ni-MH, 2 Bay LCD Display Smart Universal...
- 【Package Included】- 1 Pack 2-Bay 3.7 USB Battery Charger and 2 Pack Ni-MH Rechargeable Batteries (Material: Ni-MH; Type: Button Top; Capacity: 2200mAh, Size: 18.01mm * 18.01mm * 67.01mm / 0.7inch * 0.7inch * 2.63inch(L*W*H)). NOTES: These are Button...
- 【Temperature Protection】- Stop charging automatically if the temperature of charger or battery gets too high when charging. Stainless steel rail is more long-lasting and smooth. Worldwide voltage, suitable for the whole world, car adapter is...
- 【LCD Display】- High definition LCD displays real time charging status, 4 sets(25%-50%-75%-100%) of LED indicators show independently when charging, making the charging process visible status and stopping once completing charge intelligently
- 【Durable Design】- The battery has new internal structure, subvert the traditional battery structure, the bottom insulation ring prevents short circuit, adopts full inspection secondary explosion-proof design.
- 【MULTI USE ＆ 1000+ CYCLES for Battery】 - 2200mAh batteries Ni-MH can be recharged over 1000 times, and compatible with LED flashlights, emergency lights, portable devices, headlamps, toys, remote controls, doorbells solar lights, racing, game...
No. 5
CBJJ 2 Pack 3.7V Lithium Polymer Ion 18650 Rechargeable Battery Button Top Upgrade Capacity Batteries for...
- Please confirm the battery size before purchasing. Note that this is not a AA or AAA battery.Size: 65*18*18mm (2.56*0.7*0.7inch).
No. 6
Blomiky 2 Pack 3.7V 500mAh Li-ion Rechargeable Battery SM 2P Plug with USB Cable for Double Sided RC Stunt Car...
- 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 Li-ion batteryr replacement for some small size Drift RC Car. Battery replacement for DEERC DE70 DE42 DE45 DE68 DE69 Remote control Cars, battery replacement for BEZGAR TD141 ransform RC Cars, battery replacement for 4DRC C3 RC Cars Remote...
- 3.7V 500mAh 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 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 match.
- 3.7V 500mAh 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 Remote Control Gesture Sensor Stunt Car., which battery size, voltage and plug all match.
- 3.7V 500mAh 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 for...
- 3.7V 500mAh 1.85Wh Li-ion replacement battery spare parts suitable for RCabcar 3855 Double Sided RC stunt Car, 3.7V 500mAh Li-ion battery suitable for Amicool G03080R Double Sided 360° flip RC stunt Cars. 3.7V 500mAh Li-ion Battery suitable for Yezi...
- 3.7V 500mAh 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.
No. 7
Renyqatt 4 Pack 3.7V Batteries 1200mAh Button Top Rechargeable Battery Ni-MH, 1200mah 3.7v 4.44wh Rechargeable...
- Product Size: 67*18*18mm/2.64*0.71*0.71 inch.
- 18650 rechargeable battery can be used for LED flashlights, headlamp, toys, doorbells, cameras, small fans, RC car headlights, solar lights, racing, game controller, emergency lights, portable devices, remote controls and other electronic devices.
- Please Note: These are Button top Rechargeable Battery (Not flat Top). Please check whether it is the battery you need before purchasing.
- Low discharge multiplier, no memory effect. 3.7 volt rechargeable battery are tested under strict quality control standards,safe and reliable use. Premium Li-ion Cells For Longer Battery Life.
- We offer comprehensive after-sales service and will solve your problems within 24 hours，Please feel free to purchase!
No. 8
OXWINOU Lithium Polymer Battery 3.7V 2200mAh 103450 Lipo Rechargeable Battery Pack with 2 Wires JST 2.0mm...
- Make Sure Device Polarity Matches with Battery Pack Connector Before Purchase!!!-1.Battery Size; 2.Connector Model; 3.Connector Size; 4.Connector Polarity - THIS IS NOT UNIVERSAL!!! (It will cause a shortage if the polarity of the battery connector does...
- BASIC INFO—Voltage:3.7V; Typical capacity: 2200mAh, ; Weight: approximate 36g; Size: 11 x 34.5 x 52mm(WxLxH). And the connector model of our battery is JSH-PHR-02. The distance between positive and negative poles is 2mm and the width of the whole plug...
- RELIABLE PERFORMANCE—No leaking, excellent cost performance and long cycle life. PCM protection function: over charge, over discharge, over current, short circuit protection, over temperature protection.
- STORAGE & APPLICATION—Keep the cells in 40%-60% charged state during long period storage. We recommend to charge the battery every 3 months after receipt of the battery and maintain the voltage 3.7-4.0V. Store battery in cool and dry place.//SUITABLE...
No. 9
MLGBDC 2 Pack Ni-MH Battery, 3.7Volt Rechargeable Battery 9900mAh High Capacity Button Top for Flashlight...
- Product Size: 18*18*65mm (0.71*0.71*2.56inch), 3.7V rechargeabl batteries. Please confirm the model and size information of the battery before purchase.
- Wide Compatibility: 3.7Volt Rechargeable Battery for flashlights, headlights, digital cameras, toys,doorbells and other electronic devices. It's convenient to travel, camping and hiking
- High Quality: 9900mAh Rechargeable Battery, longer-lasting usage. Support stable 3.7volt output voltage, makes the devices work stable
- High Performance Product: 3.7Volt Rechargeable Battery supports multiple charging and discharging cycles without memory effect. Efficient and large capacity battery provides reliable power support for your daily use and emergencies
- Notice: Avoid exposing the battery to high temperatures, high humidity, or direct sunlight for extended periods
No. 10
2Pack Ni-MH Batteries 3.7V 1200mAh Button Top Rechargeable Battery, 1200mah 3.7v 4.44wh Rechargeable...
- Product Size: 67*18*18mm/2.64*0.71*0.71 inch
- Compatible with headlamp, toys, doorbells, cameras, small fans, RC car headlights, etc.
- We offer comprehensive after-sales service and will solve your problems within 24 hours，Please feel free to purchase!
- No Standalone lithium batteries are sold with the product
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Last update on 2026-04-17 / 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.
