I sort of had the feeling I was disarming something dangerous- one wrong slip and ka-boom. Now for those of you who are a little nervous, you might wanna look away. Here comes the fun part, just remember don't drop a wrench or touch anything across the positive / negative bus bars. The best case is you might be blind after you see 4th of July fireworks.
Here is the battery & BMS that needs to be removed
for shipping it also sits inside a metal frame.
The gray tray & black box is the BMS
Left side has 800 amp fuse and contactor
The right wire is Negative
The left wire is Positive
for shipping it also sits inside a metal frame.
The gray tray & black box is the BMS
Left side has 800 amp fuse and contactor
The right wire is Negative
The left wire is Positive
Its so easy, flip a tiny switch and see 13.71 volts
100% charged would be 14 volts maybe
On this battery Bulk is 14.0 vdc
Absorb is 14.4 vdc
Float is 13.6 vdc
NO- EQUALIZE-REQUIRED
no water to refill
100% charged would be 14 volts maybe
On this battery Bulk is 14.0 vdc
Absorb is 14.4 vdc
Float is 13.6 vdc
NO- EQUALIZE-REQUIRED
no water to refill
First switch the BMS off 'silver switch" & remove the negative to the BMS
the black button is the reset button
the black button is the reset button
Step 3 unplug the wiring harness from the BMS
Remove the 12+ little wires from the battery circuit boards
In my case it was easier to get the black boards to pop off
vs. unplugging each wire
and maybe break something
Finally remove the 4 bolts holding the BMS to the battery
this was a 6 mm allen wrench
Here we go BMS is removed - danger is mostly over
Last item remove the 9 bridges tying the 4 cells together
Finished for now
Stay tuned - removal of metal frame & reinstallation coming soon
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