I’ve bought an aftermarket LG HG2 10s5p battery to upgrade my CGT, foolishly thinking this would be a straightforward modification. During the install I accidentally plugged the Batt SW cable into the PSEN socket of the stock BMS, and now it seems the BMS is cooked; a BMS that is all but impossible to replace with the same one it turns out
So I investigated my options here and there seems to be a few opinions that plugging a 10s5p Li-Ion into the stock BMS is not advisable anyway and could result in a fire hazard. Apparently this is why Evolve themselves refuse to install a replacement BMS if you have an aftermarket Li-Ion battery. I heard that from a few different sources. One of these guys also told me that even if you do decide to go with the stock BMS, quite often the ESC will fail shortly thereafter, something to do with the way a Li-Ion battery discharges compared to the stock battery. This particular guy runs a business building and selling Li-Ion packs and has done dozens of upgrades on Evolve boards and this was his experience, so I tend to trust his point of view. And thus I don’t really care to get another Evolve BMS into this rig…
Currently I have the 10s5p LG HG2 battery pack in perfect working order, all cells are balanced perfectly and I just want to get this board working again with some decent components; so I’m looking to swap out the BMS and ESC with something higher quality that will fit into the CGT enclosure. The battery pack came with a spacer to lower the heatsink in the ESC cavity, thus allowing me to mount the BMS on top of the ESC, so even though the new pack doesn’t incorporate the BMS I have a little wiggle room space-wise. I’m running MBS A/T tyres on stock evolve hubs.
I assume I’m not the first person to do this upgrade, so can anyone recommend a good BMS/ESC/Remote combo that will do the job? I don’t mind throwing extra $ at the problem if it will give me a reliable solution that won’t overheat or disconnect - this is especially important as I sometimes tow a cargo trailer and the stock BMS (no heatsink) struggled a bit with overheating issues, especially on steep inclines.
One caveat is that I don’t want to go with a FOCBox; and I’ve heard good things about Flipsky & Alien Power BMS’s so if there’s anything in those ranges you’d recommend that would be a great help. Eventually I’d also be looking to slightly upgrade the motors to help deal with the extra load of towing a trailer, although I don’t think that factors into the purchase of these particular components. I’m doing my own research on these components currently as well, but I figure there’d be a few noggins in here that are waaay ahead of me?
Edit: Also does anyone know if I can fit dual 6374s onto the stock motor mounts (or get modified mounts that will)? Seems like the only way to get high torque & low kv motors is 6374/6384