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Brammo Empulse / Re: Continuing: Battery communication service cable
« Last post by Henk1313 on February 29, 2024, 08:04:11 AM »[/quote]
Hi all users, this will be my first post, but I've been reading a lot since last year or so.
I bought mine on second handed with 30 000km (18 750 miles) with a B9 fault. then after a few rides the battery went from 90 to 0% and made me think that the batteries were having issues. I started checking one by one and measure their capacity.
some of them are dead, without any capacity to receive or give power, and some are still working. not as fine as I would expected, but currently I 'm buying them from china and replacing the bad ones. here are my results so far, there are still a few batteries to measure their capacity, but look promissing. at least I will be able to rearrange the complete pack of bateries and make them more even.
When I was riding the bike and it sopped, I checked the dash board, and it said that some slots were almost depleated while the others were better. That's why I disassembled all slots and check one by one.
I have already 40 batteries to replace and order 10 more. I built a excel sheet to help me to rearrange the batteries so in the end every slot having the same capacity as all (balancing the complete package 7x4=28 slots)
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I got the exact same problem. on my first ride home I had 100% SOC and as soon as I hit the freeway (100km/h) the bike shut off.
The bike immediatly said 0% SOC. the thing is that i was able to drive home slowly. as soon as I hit the throttle the bike was shutting down again.
I am planning to swap the batteries out for completely different modules (from a volvo XC40) 4s3p * 7 with 196Ah.
so that totals to about 20kwh. the only thing is that the cmu's need to be swapped with the modules. as the bms has a rare canbus signal as far as I researched.
With all the new cells, how much range did you get ?