EEMB Lithium Polymer Battery 3.7V 3700mAh 103395 Lipo Rechargeable Pack with wire JST connector for LED and Wireless device confirm & polarity before purchase

✅D RECHARGEABLE BATTERIES: 1.5V USB li-ion D battery with high capacity, provide almost the same and steady voltage until the whole cell is depleted, long lasting in the devices. ✅MULTIPLE SAFE PROTECTION: Built-in integrated safety circuit protection intelligently controls the entire charging process to prevent overcharging, over-voltage, over-current, over-discharge, reverse charging protection. No memory effect. When the battery is fully charged, it will automatically stop charging. ✅CHARGER CABLE INCLUDED: EEMB Rechargeable lithium ion d cell batteries with 4-in-1 USB charging cable for fully charge in around 1.5 hours. You can charge 4 packs lithium ion D batteries at the same time. LED indicator shows charging status. ✅SAVING & ECO FRIENDLY: Mercury, Cadmium and lead are not used in these batteries; The D batteries can be recharged 1000+ times, saving thousands of alkaline batteries and reducing a significant about of landfill waste.Whether in home or outdoor, you can simply charge it with single USB port. ✅USB BATTERY WIDELY APPLICATION: Same as regular d cell 1.5V batteries. Ideal for most of device. Recommend use to large flashlight,radio receivers and transmitters etc.