Well, thing about "no self-discharge" is there is no such thing as "no self-discharge".
Practically, that can be true, but probably in every case it can be quantified and it's non-zero.
Key factors that influence self-discharge time: SOC% and Temperature
Some of the best lithium cells today are the Enerdel lithium cells (3000 cycle rating and other factors).
At 50%SOC and 30degC, the self-discharge rate is noted as 5% over 4years --- i.e. 1.5%/year
At 75%SOC and 30degC, the rate is 12% over 4years
Hence why it's best to store lithium batteries near 50%SOC…
YMMV-
-MT
From: electricboats@yahoogroups.com [mailto:electricboats@yahoogroups.com]
Sent: Thursday, July 14, 2016 3:14 AM
To: electricboats@yahoogroups.com
Subject: RE: [Electric Boats] Re: Lithium Sale
No! The great thing about LiFePo4's is there is no self-discharge.
Steve in Solomons MD
Lagoon 410 SE
If they've been in storage for that long, wouldn't they have self-discharged to the point of ruin?
Posted by: "Myles Twete" <matwete@comcast.net>
Reply via web post | • | Reply to sender | • | Reply to group | • | Start a New Topic | • | Messages in this topic (8) |
No comments:
Post a Comment