Tip: regardless of your choice, make sure you know the cost of the replacement batt's.
That is really important. Generally, we do not replace most batteries. Instead, we replace the equipment, and get the newest batteries. In most cases, the batteries cost almost as much as the equipment.
As a rule -- and, this really goes against my tree-hugging and green instincts -- but, don't buy used equipment with worn out batteries. In most cases, replacements will cost as much as newer and better equipment with better chargers and newer battery technology. This goes for saws, drills, etc.
