Putting together a new series on YouTube on a new channel for a refresh on the car I got in a trade. It’s a budget build, so might fit in some people’s wheelhouse. I might do a higher end build later if I end up liking this car, which is starting to be the case lol.
pls check it out, first video has been up for a bit, second one I’m uploading tonight or tomorrow.
2002 GEM E825 refresh part 1
Batteries in series. Good luck with that!
The manufacturer says one battery in series, meaning don’t do it as you said.. I hope he sees this before he gets too far.
These are the Enjoybot 36v new gen batteries.
Directly from the manual included with the batteries. And also confirmed with tech support via email.
I did ask first, the manufacturer (Enjoybot) tech support direct. I don’t know where that quote you got came from. Plus it’s in the manual. See below.
Ok, good luck. It may work out OK. You will be the first. Please don’t be pushing untested ideas until you have a few months on them.
The specs I found were 100 amp bms. Have you found bigger ones? Fyi, Gem uses 350 amp controller. I’ve seen peaks well over that. I hope you have a light foot and level ground.
I saw it on the enjoybot web site.. INWO was right to bring it up. Most wont let you series two 36v or 48v batteries. from their web site this is the manual I saw..
Anyway, hope the BMS’ works out.. do keep an eye out for the voltages over time.
Mine are 200 bms, w max 600amp controller handling, as I mentioned before they are the newer generation. Perhaps I should put that disclaimer in the video or in my posts?
Will do, will keep you updated as well.
Great 200 amp should be fine. It looks like you did your research.
That may be the answer for 2002 gems. One front and one in back. We never found a bms to work like that. Well, I did just lately, and now I’m out of 36v batteries. 
I did. I’ll update the description on YT later to include the disclaimer about the generation of battery I used in part 1 and part 2. Just need to rest a bit before my graveyard shift. I should have time, it’s not like it’s a viral video or anything haha.
I think the goal here is to NOT rush getting a “How to:” video published on something that is not even tested yet.
