So 89Ah returned. With the charger not violating the laws of thermodynamics, that means the actual amount of power returned to my pack is a bit less than that. So in a year on I've had a bit of degradation. I'm not surprised by that. A big heavy chair and a big heavy me, with a fairly small pack. I'm off pavement quite a bit, so I'm working the cells hard.
With the PL8 saying 89Ah returned, what's the best guess of the actual capacity of my 1yr old pack now?
shirley_hkg wrote:Cool connector. What's it called ?
crypmanii wrote:Has anyone on here converted an Omegatrac to Lithium batteries? I've been reading through this thread but with 174 pages of information its a little overwhelming. HaHa. I know its not a quick "plug & play" process to make the conversion. Is there a kind of walkthrough for making the conversion? Something like this may have already been posted, and if so I apologize for asking, but I just haven't seen it yet within the pages I've already looked at.
Any guidance would be greatly appreciated.
Thanks all.
Mind The Gap wrote:Hi BM
Any chance of a preset for a 8s7p 105ah Lifepo4 pack for pl8.
Cheers Paul
Scollard wrote:Well I'm happy to say that 2 years in and my battery pack is as good as ever. I only need to charge it at the most once a month. Remember it's a scooter and it's used mostly as an end point. When going from point A to B it rides on the back of my Cayenne. About once a month I put back around 40 to 60 AH. I charge more often if I'm on the bike paths with my wife. I can probably run about 50 miles on my 105 AH pack.
I just got another scooter, slightly smaller, and I've just ordered the cells to make a 60 AH 22NF sized pack.
Gnomatic wrote:Here are my groupings ....
(60 day static discharge test)
Group 1
Cell 12 - 122
Cell 16 - 109
Cell 22 - 84.3
Cell 23 - 106
Cell 36 - 107
Cell 43 - 95
Cell 44 - 189
Total 812.3mAh
Group 2
Cell 04 -187
Cell 06 - 98.9
Cell 10 - 112
Cell 15 - 106
Cell 17 - 127
Cell 21 - 89
Cell 28 - 91.9
Total 811.8mAh
Group 3
Cell 13 - 185
Cell 24 - 117
Cell 38 - 115
Cell 39 - 90.2
Cell 42 - 99.8
Cell 46 - 106
Cell 53 - 99.5
Total 812.5mAh
Group 4
Cell 02 - 98.2
Cell 07 - 95.8
Cell 09 - 110
Cell 20 - 103
Cell 35 - 121
Cell 41 - 103
Cell 45 - 180
Total 811mAh
Group 5
Cell 08 - 150
Cell 31 - 101
Cell 37 - 103
Cell 47 - 98
Cell 49 - 135
Cell 50 - 122
Cell 54 - 102
Total 811mAh
Group 6
Cell 03 - 109
Cell 14 - 114
Cell 25 - 123
Cell 29 - 107
Cell 30 - 148
Cell 52 - 102
Cell 55 - 109
Total 812mAh
Group 7
Cell 01 - 101
Cell 18 - 147
Cell 27 - 115
Cell 32 - 105
Cell 33 - 108
Cell 34 - 116
Cell 56 - 119
Total 811mAh
Group 8
Cell 05 - 109
Cell 11 - 116
Cell 19 - 100
Cell 26 - 116
Cell 40 - 111
Cell 48 - 117
Cell 51 - 142
Total 811mAh
Assuming my primitive Excel skills didn't fail me, all 8 of my groups are within 1.5mAh of each other following static discharge testing and grouping. I don't see much point continuing to fiddle trying to make that number smaller. Feel free to check my math ....
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