Will this tester work on a gell cell battery
The unit is designed for regular or sealed lead acid batteries. No information how well it will work on a gell cell battery.
Does the Gill TCT-1000 12v / 24v Capacity Tester work on both 110v or 220v?
Per the manufacturer: Neither. This product gets it power for the batteries it is testing. So either 12v or 24v.