《Feature》 

1. Built-in smart charging circuit compatible with original Ni-Cd or Ni-MH charger. 

2. Ultra high capacity 4400mAH 46% more than the original 3000mAH. 

3. Ultra long-time use our battery can run up to 4hrs 40min on Roomba 560. The original battery runs only 3hrs 56% more than the original one. (Note：The using time might be different upon different models and different places.) 

4. Li-NMC cell for motor current requirement remains 80% capacity after 800 cycle times; 1 year warranty doubles the original 180 days. 

5. Built-in over-charge over-discharge over-voltage over-current and over-temperature protection circuit safe and reliable. 

6. Patent battery balancing technology for expanding the battery life. 

7. No memory effect and no need to charge 16 hours at the first time (Until the green light flashes). 

8. 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.) 

9.The battery cells and the packs assembly are all made in Taiwan quality guaranteed.