3.7V 7800mAh Rechargeable Battery – Long Lasting Multi-Purpose Power Cell

Summary

The 3.7V 7800mAh Rechargeable Battery – Long Lasting Multi-Purpose Power Cell. This Li-ion cell maintains a 5.55 Wh energy density for consistent output during load shedding. It handles temperatures from -20 to 60°C without losing structural integrity.

Key Features

1. 1200 Cycle Life: Reaches 1200 full charge-discharge cycles before capacity drops. Reduces long-term costs for DIY electronics.
2. PCM Protection: Integrated circuit prevents overcharging and short circuits during use. Stops internal damage from electrical faults.
3. 5.55 Wh Energy: Packs high energy density into a compact 1500mAh lithium cell. Fits tight spaces in portable devices.
4. CC/CV Charging: Operates with constant current and constant voltage at 4.2V. Matches standard lithium-ion charging modules.

Frequently Asked Questions

How long does a 7800mAh 3.7V battery last?

Runtime depends on device load; a 500mA draw lasts roughly 3 hours. The 5.55 Wh capacity determines the total energy available.

Can I use a 3.7V battery for a 5V circuit?

No, this cell requires a boost converter to reach 5V safely. Directly connecting it causes component failure or underperformance.