TorqueBoards 12S4P Battery
PRICE: FREE
AUD$830 New in Dec 2019, but now only charges to approx. ~83% (48V).
It has been stored at ~60% battery for 12 months and I am now moving Continents so if anyone wants to pick it up or pay shipping then by all means.
Might be worth it for someone to strip and find something usable the odd cell or BMS etc.
For a used 30Q 12s4p, yup.
OK, reduced price to $300.
this is not good at all my man
Also, $300aud is probably a decent price point considering its age and not ideal health due to being stored at 92%… not great
Sorry - it was stored at 60% but I literally just charged it full to see what it is holding - 92%.
So you stored it around storage charge, but you fully charged it and it only charged up to 92?
Correct, I stored it at 60% and then checked it today and plugged it in for a charge to see what it would charge to when posting this thread.
I have left the battery turned on for over an hour for the battery meter to stabilize (it moves around a little) and then used multimeter to get actual voltage.
Sitting at 48V (Bat meter says 88% - don’t trust battery meters), which I guess is should actually read 95%. 4.2V * 12 = 50.4V
Right… So it sounds like it’s in pretty bad shape
I figured 95% for an approx. 2yr old battery wasnt that bad?
What this means is that the battery is nearing the end of its useful life.
Ah ok, I suppose I may need to reconsider what I do with it… Chuck it!
Glad I checked the voltage and got the guidance on here - I genuinely thought it wasn’t that bad…
Thanks for responses @ShutterShock @BillGordon
You could always offer it up here for some beers or something.
Could be super handy for someone doing a budget build etc…
As you discharge a battery, the voltage doesn’t drop linearly or all the way to zero so a linear 95% of the voltage is definitely not 95% of the capacity. Instead of the range being 0-50.4v it’s like 36-50.4. If anything, the 88% is pretty ambitious
Yeah by that math I’d say 83% is at best.
The concern for me would be that the battery isn’t charging to full.
I would have thought that even if the pack were old and tired, it would still charge to full and then settle down to a resting voltage.
The fact that it’s not even making it to full voltage possibly means there is something else going on with the pack.
And just as an FYI, pack wear/age/condition is usually measured by how much of its original capacity you can get out of it by discharging 50.4-36. If the pack doesn’t make it to full charge (or at least fairly close) it’s an indicator of not-good. Not qualified enough to say what level of charge corresponds to what level of wear, take my contribution with a pinch of salt
I would be guessing at this stage - the battery percentage would never sit at 100%, even when I bought it new, it was normally around 98%, but I had read so much about battery meters not being accurate that I did not worry too much.
My last ride with it was normal distance and I didn’t notice anything specifically wrong, but given that it has sat with ~60% charge for 12 months I’d say it could easily have just deteriorated over that time.
I had a hell of a good time on that board for 6 months though doing big distances and mad speeds of 70km/h+, so I’m not too bothered but would have been nice to get something for it rather than binning it!
Honestly if you were local to me I’d probably pay something for it, but there aren’t a lot of folks willing to roll those dice
All good - Listing changed to FREE for anyone to pick up or pay postage.
Would you ship to Germany and how much would it cost? 
