The CS-BQ51SL battery provides 3.7V 1400mAh Li-Polymer power. Match your equipment model or current battery number below, then compare the specifications and product photos.
Included: One replacement battery pack.
Battery specifications
| Voltage | 3.7V |
| Capacity | 1400mAh |
| Chemistry | Li-Polymer |
| Energy | 5.18Wh |
| Dimensions | 68.30 x 45.27 x 7.88mm |
| Battery weight | 31.4g /1.11 oz |
Find the right battery for your equipment
Compare the connector shape, wire arrangement and polarity with your original battery. Check all listed specifications; a similar model name or matching voltage alone does not confirm a fit.
Compatible equipment models
BenQ P51, BenQ-Siemens P51
Replacement battery numbers
BenQ 2C.2G3.D0.101, BenQ-Siemens 2C.2G3.D0.101