For Black and Decker 40V Max 4.0Ah Li-ion Battery Replacement |LBXR36 LBX2040 Quantity:2 pack or dispose of in fire

or dispose of in fire or water

Made with highest quality cells

For iRobot Roomba 510

Working temperature: 5℃ ~ 40℃

3，Remove debris or any pet hair which may have collected under the caps and around the cleaners metal axles

For Black and Decker 40V Max 4.0Ah Li-ion Battery Replacement |LBXR36 LBX2040 Quantity:2 pack or dispose of in fireCE Certification Match OEM products With built in protection The new battery is different from other2. 0Ahbattery on the market: Not only improved in capacity, but also improved in performance. Providing up to 35% more power and holds a charge up to 2x longer than others High quality lithium battery cells: NO Memory Effect. Charging does not affect the battery at any time, holds a charge up to 500 days; Built in microchip prevents overload&