ICR18500 3.7v 1500mAh 5.55wh rechargeable Li-Ion Power Battery Cell With PCM & connector

Equipped with a dedicated lithium battery protection board, it provides multi-layer safety protection including overcharge, over-discharge, over-current, short-circuit and reverse polarity protection. 

Pre-wired with a standard plug (default DC 5.5×2.1mm, customizable to XT30/Type-C/Dupont) and extension wires, it supports direct plug-in use without professional soldering, welding tools or wiring skills. It is easy to install and disassemble, greatly reducing the use threshold for personal users and non-professionals.

The protection board strictly controls the charge and discharge range, avoiding permanent battery damage from overcharge/over-discharge, which extends the cycle life to 500+ charge-discharge cycles (capacity retention ≥80%). It delivers stable 3.7V output voltage without sudden drop, ensuring consistent working performance of devices.

Compact 18500 size and 3.7V nominal voltage perfectly fit small portable devices: mini flashlights, headlamps, portable Bluetooth speakers, small monitors, electric toys, handheld detectors, RC model auxiliary power supplies, etc. Customizable wire length and plug type meet diverse device connection needs, with wide versatility.

Pure copper high-conductivity wires with fire-retardant insulation are anti-tensile and anti-bending; anti-oxidation plug ensures stable contact and no poor connection. The all-in-one pre-assembled design avoids the trial-and-error cost and failure risk of self-assembly, with higher cost performance and longer service cycle.

The protection board and plug cover the battery’s positive and negative poles, isolating dust, moisture and metal impurities, preventing contact oxidation and short circuit, and adapting to outdoor dusty/moist use scenarios.