1. Built-in smart charging circuit compatible with original Ni-Cd or Ni-MH charger.
2. Ultra high capacity 6600mAH 60% higher than the original 4100mAH.
3. Li-NMC power cell, design for motorized current; Ultra high cycle times, 6 month warranty.
4. Built-in over-charge over-discharge over-voltage over-current and over-temperature protection circuit, safe and durable.
5. Patent battery balancing technology for expanding the battery life.
6. No memory effect and no need to charge 16 hours at the first time (Until the green light flashes).
7. Ultra low self-discharge rate (1% per month) no need to keep charging the battery when you are not going to use it and it won’t be damaged under a long time transportation or storage. (The self-discharge rate of Ni-MH battery is over 25% per month and it might easily cause damage if without charging beyond 3 months.)
8. Ultra long-time life battery which provide fully power to clean your floor continuously for supplying 3 cycles of Scooba build-in clean water tank.