BlueMAX select premium Lithium Ion cell (Li-Ion 18650) from many cell manufacturers both in China and abroad, and conduct mass contracting test with different suppliers' cell, different wire and contact plate to ensure that we could supply our customers the best cost performance and the most reliable quality.

After serious contrast test with Samsung cell 2500mAh and 3000mAh, we list the series of discharge curve below to demostrate the performace from 10A to 20A continuous discharging, with cut-off voltage 2.5v/cell. (BM stands for BlueMAX cell, and SS stands for Samsung cell).

From May 2023, BlueMAX have carried out Ultra Power Li-Ion 2900mAh series, which are capable of being discharged at 35A continuously. Further more, they can perform perfectly even under extreme cold climates, -40 ℃ （minus 40 degree Celsius).

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