Chris,
If you went STRICTLY on power usage, that would be true.
Hopefully (!!), the BMS also has a minimal voltage that would be a separate limit.
You are correct, that as the battery ages, it won't hold up as long on a charge. You'll basically get to the lower voltage limit faster. But as long as you have a lower voltage limit alarm / cutoff / warning, you'd be ok.
John
From: "clh5_98@yahoo.com" <clh5_98@yahoo.com>
To: electricboats@yahoogroups.com
Sent: Tuesday, December 24, 2013 4:23 PM
Subject: [Electric Boats] Battery capacity reduction over time
To: electricboats@yahoogroups.com
Sent: Tuesday, December 24, 2013 4:23 PM
Subject: [Electric Boats] Battery capacity reduction over time
Hi Group. I have a battery state of charge monitor for my bank. It looks at discharge rate, applies the Peukert value and the bank size in AH programmed by the user. This works fine for a newer bank, but what about a bank with a few years on it? Should some adjustment in the settings be made over time to the meter to account for decreasing capacity over time? As the battery ages could we unknowingly be killing our banks by discharging them deeper and deeper as they age? Thanks, Chris
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