... I just threaded the sprocket on, using the highest strength thread locker I could find, followed by the lock ring, making it as tight as I could without...
... It's impossible to imagine people voluntarily limiting themselves to 200w. It's much easier to imagine governments limiting them to 200w, which is what...
Dear people, I have thought a little improvement for my SLA batteries: Connect in parallel with them a large-capacity electrolytic capacitor, let's say 5000 uf...
I'm just asking simple questions, and getting evasive answers. This just re-inforces my decision to build a smoke belcher. Who is John Schuyler? I'm not...
You really don't want to get into a *John Schuyler* kind of thing here by quoting old posts from someone who sounds like they're singing a *new* tune now do...
... Ok. Then what is the maximum amp hours that I can get out of your "10 ah" cell/pack with your low voltage cut-off and your cat herder while discharging to...
All rechargable battery chemistries have an operating voltage range.. and all are damaged if over-discharged. LiFePo4 cells are fully charged when up to 3.6v...
Thanks Chalo - we finally meet on a common ground ! J Don From: power-assist@yahoogroups.com [mailto:power-assist@yahoogroups.com] On Behalf Of chalocolina ...
... It was not you but Joshua who said that 100% discharge could be done with LiFePO4 packs, and andrsnj1 who said that it should be standard operating...
That's true. Single Pack doesn't need a BPM. LVC can be built-in to single pack. Multiple packs need a cat herder (BPM). Also a BPM is not a substitute for...
Harmon keeps referring to multiple packs whereas everyone else here refers to multiple cells that when combined form a single pack. Gets confusing sometimes. ...
Realistically it is a fool's errand to try and achieve 100% DOD. But ... Here is a quote from your post on November 8 A LiFeBATT battery pack or packs can go...
The BPM doesn't limit DOD, it responds to the VMS TTL signal, which is programmed in the VMS firmware. A well balanced LiFeBATT pack should give 100% capacity,...
Exactly - Only people like AndersonJ want to argue this point. Theoretically it's possible on a Cell level, like Joshua has already pointed out. Realistically...
... I don't know, and I'm not sure whether it matters. I have no problem with BMS per se, as long as it's cost-effective and doesn't spend too much of the...
You are all talking about "a battery pack" meaning a single pack of X amount of cells. When you build large scale battery systems consisting of 20 -50 battery...
Motor controllers have a Low Voltage Cutoff built in to protect older battery chemistries from being damaged. IF you didn't have that LV cutoff in your...
All I remember was David Lalonde going on and on and on about how a BMS is only needed for the charging/cell balancing stage and you don't need no steenkin BMS...
What other LiFePO4 or Lithium-ion rechargeable battery company do you know, Chalo, that provides a more complete line of Plug & Play Battery Packs "off - the -...
... Cutting through the jargon and marketing tripe here, what I read is that there is enough BMS involved to float a battleship. Thus it is inaccurate to say...
I have watched the discharge curve during testing and every one of these Dewalt battery packs discharged until they hit the steep part of their voltage curve,...
LiFeBATT has developed intelligent Plug & Play LiFePO4 battery packs for the OEM EV market - not specifically for the E-Bike market. We have a VMS (Voltage...
... Time will tell. You wanna bet a couple thousand clams on it? I don't. Especially if Don said it's true. ... On a _single cell_, sure. But with the...
Me thinks Don is correct (happens occasionally) Lifepo4 can be discharged to 100% DOD on a regular basis without damage to the cells. Ni-CD is the only other...
Hi Dan Sullivan, How did you install the sprocket on the Crystalyte 408 to drive the crank? I am interested in using a 2 speed Crystalyte 404/408 at 72 volts...
... I used A123 cells inside those battery packs, one of the best if not the best cell out there. What would be the difference between a BMS circuit designed...
The Model 408 at 500W X 36V in a 26" wheel at best is 17 mph and the cogging is noticeable. In a 20 inch diameter wheel it might be faster to walk. Use a 400W...
... My daily trips are only about 2 miles. I could probably just string a bunch of recheargeable D cells together, but the discharge rate would be awfully...
... You used battery packs and chargers that were designed for power tools. These small battery packs had BMS circuits that were designed for this singular...
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