gitarman2
New member
I have a 2016 Zero FXS with the modular dual battery modules. While out on a ride I laid it down on a turn going about 20mph. After a quick pop to fix the handlebars, I got back on and rode home. When I got home I put it on the charge and it seemed to be charging fine. The other day I went to go for a ride and noticed it was only charged to 74% or so, but it was plugged it. I verified I had power at the outlet, but the bike wasn’t charging. Just to be sure I tested the cable and it’s fine. I then decided to swap the positions of the batteries and this is where things got weird. My battery percent on the dash dropped down to like 40%. I then swapped them back, still at 40%. I tried to reset the BMS on each battery, no luck. I tried the batteries 1 at a time with the cap on position 2, no change. I removed the rubber side cover under the batteries to expose the quick charge port, and that isn’t doing anything either. Checked all the fuses I could find and nothing is blown. At this point the bike would still run, so I took it for a trip around the block thinking maybe it would “reset” something, but still wouldn’t charge. It’s like the bike doesn’t know it’s plugged in to even start the charge. So I removed the batteries again and put a little dielectric grease on the terminals and replaced. At this point the whole lcd screen started to flash and the bike will no longer run. It flashed like that for a few days so I’m pretty confident at this point both the batteries are completely dead. I’m wondering is there a way to charge these batteries using a battery tender or trickle charger so I can continue to troubleshoot. Any advice or tips are welcome because the next step if I can’t figure it out is haul it to the closest dealer which is a couple hours away. Thanks.