Advantage: Overcharge and overdischarge protection to increase the life of the battery. No memory effect, can be charged or discharged as needed without loss of capacity. Low self-discharge for maximum productivity and less downtime. CE, FCC and RoHS certified, 100% compatible with the originals. No pollution to the environment. Specifications: Voltage: 21.6V Capacity: 3500mAh Battery Type: Li-ion weight:316g Replacement for: for Philips INR18650C25 Compatible Models:(Ctrl + F / Cmd + F to search for your model) for Philips FC6721, FC6721/01, FC6722, FC6722/01, FC6723, FC6723/01, FC6725/01, FC6726/01, FC6729, FC6729/01, SpeedPro, SpeedPro Aqua.
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