If you do have a battery that is overheated, allow it ample time to cool down before trying to charge it. Ryobi 40V batteries are designed to be used with outdoor tools, so they're likely to ...

Milwaukee's 6Ah batteries top out at 18V, and Ryobi -- whose 80V packs are primarily designed for lawn mowers and do not include a 6Ah offering -- topping out at 40V. EGO batteries also boast ...