Built-in protection circuit (PCM) prevents over charging/discharging.
⚡ 3.7V 502030 250mAh LiPo Lithium Polymer High Capacity rechargeable Battery ⚡
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EEMB 3.7V 502030 Battery 250mAh Lipo Battery Rechargeable Lithium Polymer Battery with JST2.0 for Nextbase Dashcam Battery Replacement-Make Sure Device Polarity Matches with Battery Before Purchase!
⚡ 3.7V 501730 250mAh LiPo Lithium Polymer High Capacity rechargeable Battery ⚡
2pcs 3.7V 250mAh LiPo Battery for MP3 GPS PSP Bluetooth 402035 JST 1.5mm