Battery BLP821 4500mAh by OnePlus 9 5G LE2110 LE2111 LE2113 LE2115 LE2117 premium quality

BLP821 4500 mAh Battery for OnePlus 9 5G LE2110 LE2111 LE2113 LE2115 LE2117 Premium Quality

Professional BLP821 battery replacement for OnePlus 9 5G LE2110, LE2111, LE2113, LE2115 and LE2117 in Premium quality, designed to restore battery life, charging stability and everyday device operation. It features an approximate equivalent capacity of 4500 mAh, a nominal voltage of 7.74 V and a dual-cell architecture adapted to the terminal's power system. It is a solution intended for professional repairs of devices with degraded batteries, reduced battery life, unexpected shutdowns or a noticeable loss of energy performance. Before installation, it is essential to verify that the removed battery corresponds to reference BLP821.

Specifications

Battery reference: BLP821

Equivalent capacity: 4500 mAh

Nominal voltage: 7.74 V

Approximate energy: 17 Wh

Technology: rechargeable lithium-ion polymer

Configuration: dual cell

Compatibility: OnePlus 9 5G LE2110, LE2111, LE2113, LE2115 and LE2117, only on units fitted with a BLP821 battery

Premium quality provides a balanced solution for replacing worn batteries while maintaining stable power delivery and proper behavior during charging and discharging cycles. Its construction is designed to integrate correctly into OnePlus 9 5G devices that specifically use the BLP821 reference. Replacement helps restore battery life and reduce problems associated with battery ageing, such as rapid discharge, sudden percentage drops or shutdowns. Due to the existence of different battery references within the OnePlus 9 5G family, prior physical verification is essential to avoid compatibility errors. Available for immediate shipping from Spain.

Installation Tips

Disconnect the device before starting the repair.

Check that the reference of the removed battery is BLP821.

Compare the flex cable and connector position before installation.

Do not bend, puncture or press the battery during installation.

Perform a charging and operating test before permanently closing the device.

After installation, perform several full charging cycles to help correctly calibrate the displayed battery percentage.

Notice

The OnePlus 9 5G can be found with BLP821 or BLP829 batteries depending on the version and manufactured unit. Although they have similar nominal electrical characteristics, there may be physical differences in the flex cable, connector and assembly layout. They should not be considered directly interchangeable references. Before ordering or installation, physically check that the battery removed from the device corresponds to BLP821.

Technical Table