IMPORTANT!

In order to achieve the 8,5 kW with the TC500 Controller, make sure to use the stock SurRon 38Ah battery with 37Ah capacity.

With the stock SurRon 38Ah battery with (nominal) 38,5 Ah capacity, you will be able to reach 7kW. You can also distinguish this battery from the 37Ah battery, by having both, Nominal and Rated capacities written on the sticker.