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Hi Guys,
My 1238-6501 Curtis controller gives very different SOC % for similar
voltages.
For example I've recorded a pack voltage of 82.2 and had the Curtis show
22%, 31%, 43%.
The pack is made up of 25 Thundersky 160Ah batteries.
It's getting worse too. Now I'm getting the charger turning off
On 08/06/2017 07:38 PM, Matthew Quitter via EV wrote:
Hi Guys,
My 1238-6501 Curtis controller gives very different SOC % for similar
voltages.
For example I've recorded a pack voltage of 82.2 and had the Curtis show
22%, 31%, 43%.
The pack is made up of 25 Thundersky 160Ah batteries.
With
.
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I agree. Voltage on LFP cells is useless for determining the SOC.
The voltage is very constant except at near 100% SOC and at 0% SOC.
You really need information about the middle, and voltage doesn't give
any clue about that.
You need to count the amp-hours, like with an E-meter or a Cycle-Anal
Thanks guys... but if the charger is turning off at a fixed voltage how do I
get more power into the pack?
> On 7 Aug 2017, at 05:02, Bill Dube via EV wrote:
>
> I agree. Voltage on LFP cells is useless for determining the SOC.
> The voltage is very constant except at near 100% SOC and at 0% S
