Are there any general recommendations regarding maintenance of batteries and chargers?
• One of the major problems with budget type tools and batteries is overcharging. Users tend to leave them on overnight when only 3 hours is required to finish the charge cycle. Most plug pack chargers require the user to terminate the charge (professional tools are automatic). Use the formulae above to calaculate the correct charge time for your particular battery. Use a timer if you are not going to be around to terminate the charge. Keep contacts clean and dry – rub with scotchbrite if corroded.