I bought the 2 pack batteries because I didn't want to have to stop blowing leaves into a pile due to having to wait on a battery to recharge. I thought that by having 3, I would never run out of battery life, and it's true! However, it is not unusual that by the time one battery needs a charge the one in the charger has been recharged. I just didn't want to take the chance to have to wait on a charging battery.
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