I work at a boat shop and one of our guys went to close up shop for the day and he hooked the charger up to the main board instead of the batteries. It's popping a small 15amp fuse the second you turn on the key. It's a 1995 serial number 1A151138 and we just paid for some kid to come trouble shoot it. Charged us a lot and he says we need to replace it all. I said that's a joke and that from what I've read it says we need a dc to dc converter. He says they didn't use dc to dc converters in 95 but didnt know what the components were or where they are located at. I can't find a manual to purchase and this forklift is kinda the life blood at the shop. If anyone can help direct me to what components were used before they went to a dc to dc converter, part number or some schematics for me to do the ground work would be much appreciated. Thanks in advance. Don't know if it helps but it's a 36v model.