I am using 20 A123 Systems ANR26650M1A. As far as I know as bullet proof as
Lithium can get. I am looking at 20s BMS. I am planning on 2P. 5ah 60-72v
battery. Yes I don't need full charge. I don't see why I can't just use a 72v
charger instead of 73. I don't need the speed or to top off. I am
The Valence batteries I use are totally drop in compatible with lead chargers.
The 20s BMS is for an Electric bike project. The Valence are in the eGO Cycle
and perform perfectly unless you sag them too much. They like the Go Far
modebut zip along in the Go fast mode to a point. Mostly dow
Lawrence Rhodes via EV wrote:
I have 20s by 2p in mind for this pack. What would be the pack
charging voltage? I think for safety 71.4 but the BMS seller says
73vdc. Lawrence Rhodes
Hi Lawrence,
There really is no "precise" fully-charged voltage. It varies with the
type of battery, its tempe
Bill Dube via EV wrote:
We have a huge variac with a bridge diode we call "Mongo charge" that we
use if we let the magic smoke out of all our on-track chargers.
We _never_ leave it unattended. Ever.
If you (or we) decided to leave such a primitive charger
unattended, we would probably use a
at NEDRA (http://groups.yahoo.com/group/NEDRA)
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On 8 Jun 2020 at 6:45, paul dove via EV wrote:
> Just because an engineer developed a BMS does not make it good. It was
> an engineer that designed the lap top batteries that caught fire as well.
I said "designed by someone who knows his or her stuff, and made by a
qualified manufacturer that i
By the way, Valance was bought out by Lithium Werks
https://www.globenewswire.com/news-release/2018/02/07/1335508/0/en/Lithium-Werks-Acquires-Valence-Technologies-Inc.html
AUSTIN, Texas, Feb. 07, 2018 (GLOBE NEWSWIRE)
Lithium Werks B.V. (www.lithiumwerks.com), a fast growing lithium ion
battery
Valance batteries already have a BMS built in. In addition, LiFePO4 cells have
the highest thermal runaway temperature I believe it’s 250C so much safer than
other chemistries. We overcharged one for 4 hours one time as a test. It melted
the plastic casing and vented but never caught fire. I hav
age? I think for safety 71.4 but the BMS seller says 73vdc. Lawrence
> Rhodes
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