The 3.7V 2500mAh Rechargeable Battery Pack provides high energy density in a compact form factor.This battery is designed for reliability and longevity, featuring a stable discharge rate that is ideal for sensitive electronics. Most of our packs come with an integrated Battery Management System (BMS) protection board to prevent overcharging, over-discharging, and short circuits, ensuring your project (and your home) stays safe.
Key Features
Huge Capacity: 2500mAh provides significantly longer runtimes compared to standard 1000mAh or 1200mAh cells.
Built-in Protection: Internal PCM/BMS circuit protects against over-charge (>4.2V) and over-discharge (<3.0V).
Standard Connector: Usually equipped with a 2-pin JST-PH 2.0mm or JST-XH connector for “plug-and-play” use with many development boards.
Lightweight Efficiency: Offers a much better power-to-weight ratio than NiMH or Lead-Acid batteries.
Fast Charging: Supports standard 0.5C to 1C charging rates.
Technical Specifications
Feature
Specification
Nominal Voltage
3.7V
Full Charge Voltage
4.2V
Capacity
2500 mAh
Chemistry
Lithium-ion Polymer (Li-Po) / Li-ion
Standard Discharge
0.2C
Max Continuous Discharge
1C (2.5A)
Operating Temp
-20°C to 60°C
Connector Type
JST-PH 2.0 / Pre-tinned Leads
Safety Warning
Use a Dedicated Charger: Only charge with a dedicated Li-ion/Li-Po charger (like the TP4056). Never use a standard DC adapter.
Avoid Heat: Do not expose to temperatures above 60°C or direct sunlight for extended periods.
Do Not Puncture: If the battery looks swollen (“puffy”), stop using it immediately and dispose of it safely.
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