Western Slope Rover
Well-Known Member
Good lord!
As it already has a charging system that drives the motor and charges the battery I don't see what you would gain?
biketeacherdave
Well-Known Member
Seriously ???
I think with the electrical systems that look after the hybrid system you may have one hell of a challenge doing that if it were possible
Diesel but reason for question is the hybrid batteries are defunct and China holding the UK to ransom. Been on the waiting list since February for new power cell.
Waiting for new power cell since February from JRR . Trying to get the car on the road by adding an alternator to charge the 12v battery which the power cell would do
Datatek
Well-Known Member
So you just want to charge the engine starter battery? No easy task to fit an alternator to the engine I suspect. I see a yank has put a generator in the boot of his BEV, you could get a small 12 volt generator and wire that to the starter battery, carry the genny on a bike rack.
Graculus
Well-Known Member
It won't work, the DC-DC converter and powertrain controller communicate with the BMS, if the BMS detects a cell fault or low insulation resistance, it will prevent the vehicle from starting. No amount of 12V charging will convince the BMS to issue a start authorisation to the powertrain if there is a HV fault present.
Thanks so much- scrap that idea then! Anyone know where there any power cells to be had??
Thanks- scrap that idea then! Anyone know where there are power cells available this year??
There's lots of videos out there showing how to revive or replace individual cells within the larger battery pack. No reason why it shouldn't be possible on any hybrid. You definitely need to understand how the isolate & remove the pack before you start. There's probably anything from 300-400V DC there, which can give you a nasty dose of death.
Graculus
Well-Known Member
It's not just replacing the defective cells (assuming that is the problem not a coolant leak or HV insulation - or even the contactor fusible links blown in the event of the SRS deeming an impact was severe enough to 'blow them clear').
Of course, after resolving whatever the issue is, you'll then need to put the BMS back in service mode.... So you'll need a bit more than an 'all makes' code reader.
If you know or can get the fault codes, I can give you an idea of what's involved.
Of course, after resolving whatever the issue is, you'll then need to put the BMS back in service mode.... So you'll need a bit more than an 'all makes' code reader.
If you know or can get the fault codes, I can give you an idea of what's involved.
Thanks for your response. Iāll see what I can find out and let you know
No so much the volts but the amps available to launch a 2 ton carvthrough the air are insane. Definitely not a job to take on without the right tools.
Moreover, everything is so damn complex these days. I wouldn't be surprised if it needs the impedence matching somewhere and probably dedicated diag to do various stuff.
Datatek
Well-Known Member
Amps do nothing without volts, put your fingers across the post of a 900CCA battery and you will feel nothing because the voltage is too low compared the the resistance of your body. A couple of amps at 400 volts will certainly do you harm.
Well, yes, that goes without saying but you can handle thousands of volts with low enough amps. You cannot handle many amps no matter whatbthe volts.
