this 6000 lbs 48 volt lift truck was delivered to my customer in used condition with a new battery in it.the battery condition gauge after a full charge only goes 3 or 4 bars up on the gauge. i will do a hydrameter reading on the battery to determine whether it is fully charged my question is will i need a special handheld device to set the ir comp for the gauge.i think the truck is 2000 or newer vintage.