Moving on to the rechargeable PP3 battery in the middle he finds the 8.4V unit is made up of seven 1.2V nickel-metal hydride cells. Many of them were shot, but we’d love to see one of the intact ...
Roomba 500 series and some others series uses NiCd or NiMh battery. Typical Roomba battery contains 12 cells. Voltage for NiMh battery is 0.9-1.6V per cell or 10.8-19.2V per battery. Roomba charges ...
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