Polymer 37v Li Ion Batteries 803450 of 2025
Best Choice1
HXJNLDCHXJNLDC DC 3.7V 2100mAh 804050 li-ion Lithium Ion Polymer Battery Replacement for DIY 3.7-5V Electronic Products with Built-in 2-Wire Battery Replacement, Mobile Energy Storage Power Supply
Main highlights- This battery is applicable to electronic products with DIY 3.7-5V less than 7.77Wh 2100mAh.（★Not suitable for power tools and model aircraft）。
- Please compare the connector specifications and polarity according to the display diagram before purchasing,★the red wire is the positive "+" and the black wire is the negative "-"，Do not reverse-charge or reverse-connectreverse. ★The primary battery of some products has no plug or mismatched plug or mismatched polarity. It doesn't matter, you can cut and solder the plug directly or use our heat shrinkable insulating sleeve to connect the same color wire.
- It‘s consists of of large-capacity A+ lithium battery, Japanese Seiko IC overcharge and overcurrent short circuit protection board, 3302-24 high temperature resistant silicone cable, and genuine JST Pitch 2.0mm ★2 wire connector module.。
- If there are any quality issues within a year, ★please feel free to contact us via email for replacement.
- 804050 rechargeable lithium ion polymer battery,★ size 2 x 1.574 x 0.314 inch(51×40×8mm) (L*W*T),nominal voltage 3.7V, full charge voltage 4.2V, capacity 2100mAh, power 7.77Wh, Weight:1.16oz(33g)，Maximum current:2.1A。 It can prevent overcharge, overdischarge, overcurrent, and short circuit..
9.8Exceptional
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Value for Money2
OXWINOUOXWINOU Lithium Polymer Battery 3.7V 2200mAh 103450 Lipo Rechargeable Battery Pack with 2 Wires JST 2.0mm Connector for Speaker and Wireless Device(1-Pack)
Main highlights- 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 for Bluetooth speaker, dash cam, keyboard and mouse, Wi-Fi smart home systems, PDA and digital cameras, GPS, monitoring units, e-books, tracking devices, blood oxygen tracking equipment, pulse monitors, wireless.
- 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.
- 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 not match your device.)
- 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 is 5.8 mm.
9.7Exceptional
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3
Liter energybatteryLiter energybattery 3.7V Lipo Battery 800mAh Rechargeable Lithium ion Polymer Battery 503048 Lithium Polymer ion Battery with JST Connector
Main highlights- Voltage: 3.7V; Typical capacity: 800mAh, Min capacity: 750mAh; Material: Lithium Polymer; Connector Type: 2P PH2.0mm Pitch; Size: 48*30*5mm (WxLxH)
- Storage: Keep the battery at 40-60% charge during long storage. We recommend charging the battery every 3 months after receipt, keeping the voltage at 3.7-4.0V, and storing it in a cool, dry place.
- Reliable Performance: No leak, high cost performance and long service life. PCM protection function: overload protection, short circuit protection, over temperature protection.
- Guarantee: Please contact us if you have any questions or concerns with the product via Amazon message. We will respond to you within 24 hours.
- Application: Suitable for portable DVD players, bluetooth devices wireless devices, dash cam, bark collar for dog, keyboard and mouse, wearable electronic devices, PDA and digital cameras, GPS, monitoring units, notebook computers, e-books, telematics, tracking devices, sleep management equipment, blood oxygen tracking equipment, pulse monitors, Wi-Fi enabled smart home systems.
9.6Exceptional
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4
EEMBEEMB 3.7V Lipo Battery 500mAh 403048 Lithium Polymer ion Battery Rechargeable Lithium ion Polymer Battery with JST Connector Make Sure Device Polarity Matches with Battery Before Purchase!!!
Main highlights- 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 for Bluetooth speaker, dash cam, keyboard and mouse, Wi-Fi enabled smart home systems, PDA and digital cameras, GPS, monitoring units, e-books, tracking devices, sleep management equipment, blood oxygen tracking equipment, pulse monitors.
- 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.
- MANUFACTURER DIRECT— Please contact us if you have any questions or concerns with the product via Amazon message. We will respond to you within 24 hours.
- CERTIFICATIONS—UN 38.3 compliant and UL certified for cell. More than 400 EEMB batteries are UL certified. Search "MH20555" on UL for all EEMB UL certification information.
- BASIC INFO—VOLTAGE: 3.7V; Typical capacity: 500mAh, Weight: approximate 12g; Size: 30.5 x 50 x 4.3mm/1.2"x1.97"x0.17" (WxLxH)
9.5Excellent
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5
Liter energy batteryLiter 3.7V 1200mAh 803443 Lipo Battery Rechargeable Lithium Polymer ion Battery Pack with Two Lines
Main highlights- Size:43 x 34 x 7.5mm
- Reliable Performance—No leak, excellent cost performance and long cycle life. PCM protection function: overcharge, over-discharge, over-current, short circuit protection, over temperature protection.
- 3.7V; Typical capacity: 1200mAh; 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, and store the battery in a cool and dry place.
9.4Excellent
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6
YTKavqYTKavq 3.7V 500mAh Battery 403048 Lithium Polymer Ion Rechargeable Li-ion Li-Po Battery with 2P PH 2.0mm Pitch Connector
Main highlights- Voltage: 3.7V; Capacity: 500mAh；Maximum Charge Voltage/Current: DC4.25V/250mAh
- Size: 48mm x 30mm x 4mm/1.87" x 1.17" x 0.16"
- Package Content: 1 x Lithium Polymer Battery
- Material: Lithium Polymer; Net Weight: 15g
- Connector Type: 2P 2.0mm Pitch; Cable Length: 5cm / 2"
9.3Excellent
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7
Liter energybatteryLiter energybattery 3.7V Lipo Battery 500mAh Rechargeable Lithium ion Polymer Battery 502535 Lithium Polymer ion Battery with JST Connector
Main highlights- Voltage: 3.7V; Typical capacity: 500mAh, Min capacity: 300mAh; Material: Lithium Polymer; Connector Type: 2P PH2.0mm Pitch; Size: 35*25*5mm (WxLxH)
- Storage: Keep the battery at 40-60% charge during long storage. We recommend charging the battery every 3 months after receipt, keeping the voltage at 3.7-4.0V, and storing it in a cool, dry place.
- Reliable Performance: No leak, high cost performance and long service life. PCM protection function: overload protection, short circuit protection, over temperature protection.
- Guarantee: Please contact us if you have any questions or concerns with the product via Amazon message. We will respond to you within 24 hours.
- Application: Suitable for portable DVD players, bluetooth devices wireless devices, dash cam, bark collar for dog, keyboard and mouse, wearable electronic devices, PDA and digital cameras, GPS, monitoring units, notebook computers, e-books, telematics, tracking devices, sleep management equipment, blood oxygen tracking equipment, pulse monitors, Wi-Fi enabled smart home systems.
9.2Excellent
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8
KBT KEEP BETTER TECHKBT 3.7V 500mAh Li-Polymer Battery: 503035 Lipo Rechargeable Lithium-ion Replacement Batteries with PH 1.25 JST Connector, PH2.0/2.54 JST Connector for Replacement
Main highlights- Wide useage: the battery fit for digital cameras, tablet, home monitor, GPS,toys, Network Box，USB Fan，Tester，air Purifier,controller，bluetooth speaker baby infant monitor, keyboard and mouse etc
- Long life-time: With about 800 times charge and discharge cycles,the battery can work for 1-2 year in normal using. If you don't use the battery often, please running out the battery capacity and full charging the battery once a month.
- Life time warranty: Every battery from us is of guaranteed quality for life-time. If you have any probelms with the product (caused by product itself), please contact with us for replacement or refund any time.
- Certified quality: Each lithium battery pass safety examination before they leave the facotry. They must pass UN38.3 test standards such as low-high temperature test, impact test, over charging, external short circuit, vibration test etc. It will lower down the risk caused by accident to minumum in production, shipping and your using period.
- 503035 Lithium polymer battery: 3.7V 500mAh , batteries comes with PH1.25 2Pin JST connector, PH2.0/2.54 JST Connector for replacement.
9.1Excellent
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9
KBT KEEP BETTER TECHKBT 3.7V 800mAh Li-Polymer Battery: 702250 Lipo Rechargeable Lithium-ion Replacement Batteries with JST Connector
Main highlights- Wide useage: the battery fit for digital cameras, tablet, home monitor, GPS,toys, Network Box，USB Fan，Tester，air Purifier,controller，bluetooth speaker baby infant monitor, keyboard and mouse etc
- Long life-time: With about 800 times charge and discharge cycles,the battery can work for 1-2 year in normal using. If you don't use the battery often, please running out the battery capacity and full charging the battery once a month.
- Life time warranty: Every battery from us is of guaranteed quality for life-time. If you have any probelms with the product (caused by product itself), please contact with us for replacement or refund any time.
- Certified quality: Each lithium battery pass safety examination before they leave the facotry. They must pass UN38.3 test standards such as low-high temperature test, impact test, over charging, external short circuit, vibration test etc. It will lower down the risk caused by accident to minumum in production, shipping and your using period.
- 702250 Lithium polymer battery: 3.7V 800mAh , batteries comes with JST connector, very convenience to use.
9.0Excellent
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10
Liter energybatteryLiter energybattery 3.7V Lipo Battery 350mAh Rechargeable Lithium ion Polymer Battery 402535 Lithium Polymer ion Battery with JST Connector
Main highlights- Voltage: 3.7V; Typical capacity: 350mAh, Min capacity: 300mAh; Material: Lithium Polymer; Connector Type: 2P PH2.0mm Pitch; Size: 35*25*4mm (WxLxH)
- Storage: Keep the battery at 40-60% charge during long storage. We recommend charging the battery every 3 months after receipt, keeping the voltage at 3.7-4.0V, and storing it in a cool, dry place.
- Reliable Performance: No leak, high cost performance and long service life. PCM protection function: overload protection, short circuit protection, over temperature protection.
- Guarantee: Please contact us if you have any questions or concerns with the product via Amazon message. We will respond to you within 24 hours.
- Application: Suitable for portable DVD players, bluetooth devices wireless devices, dash cam, bark collar for dog, keyboard and mouse, wearable electronic devices, PDA and digital cameras, GPS, monitoring units, notebook computers, e-books, telematics, tracking devices, sleep management equipment, blood oxygen tracking equipment, pulse monitors, Wi-Fi enabled smart home systems.
8.9Very Good
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