Item Name: Accessories Fishing Float Battery Electronic Floats Batteries USB Charger. Name: Rechargeable float batteryBattery weight: about 0.7gBattery size: about 4*25.5mm/0.16*1inOutput voltage: 3VModel: CR425Material: carbon core1Convenient to Carry: Small and light, easy to carry, can use car to charge, can be placed in the fishing gear bag, pocket, charging treasure, etc., easy to use.2Safe and Environmentally Friendly: Safe and environmentally friendly, recyclable, 4-8 hours full charge, good stability.3Proper Aperture: Proper aperture, easy to insert/extract, not easy to fall off.4Strong Power: Strong power, long use time, recyclable, rechargeable more than 100 times, durable.5Multiple Charging Methods: Rechargeable in the car, laptop, plug charging, power bank charging, multi-function power strip, desktop computer, etc.Packing List: 1*USB Charging Head,2*CR425 Rechargeable Batteries *Please make
