Lithium-ion 4400 mAH Battery for Roomba 500, 600,700, 800 Series
https://www.amazon.com/gp/mpc/A2P3F7YAJKV1FO
Original price: $79.98
50% off code: 50offlithium
50% off price: 39.99
https://www.amazon.com/promocode/A2P3F7YAJKV1FO
This is the best Lithium-ion you can buy in market.
Made in Taiwan
4x longer battery life than iRobot Roomba batteries and all aftermarket replacement batteries.
800 cycle times, 1 Lithium-ion = 4 NiMH/NiCd batteries
Longer operating time! 4400 mAH vs original battery's 3000 mAH. We guarantee this Li-ion battery has superior performance than any NiMH battery in market
No risk 30 days money back guarantee, and 18 month warranty.
FULLY compatible with the original charger and vacuum. Built-in over-charge, over-discharge, over-voltage, over-current, and over-temperature protection circuit.