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Eco-worthy 12v 150ah - more capacity than labeled?

TacticalHubs

New Member
Joined
Jun 17, 2021
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Hi Everyone,

I am still hours in to my capacity test of an eco-worthy 12v 150ah, and so far, the screen is showing 160ah (2000wh) and climbing, and still only at 11.1v. I know I’m getting close to being done with the test once hits around 10v, but is this expected for this brand? Thought it would be more at 1,800wh (12v x 150ah), so curious if others in the community know what’s going on here. Maybe does eco-worthy de-rate their listed ah rating?

Appreciate the comments!

link to battery:
ECO-WORTHY 12V 150Ah LiFePO4 Lithium Iron Phosphate Battery Deep Cycle Rechargeable Battery with Built-in BMS, 3000+ Life Cycles, Perfect for RV, Marine, Motorhome, Solar, Household battery https://www.amazon.com/dp/B096FGMLN...abc_GVP52PVMXGF9G2YRKWGE?_encoding=UTF8&psc=1
 

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Update: stopped test at 10.2v

163.80ah
2059.97wh
 

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Is this normal, @Bob142 or @Will Prowse I’ve followed/read several of your postings and videos, and would greatly appreciate your insights on this battery registering more amp-hours than listed. Did I just get lucky, or is this normal for labels to “de-rate” the cells’ true capacity for a safety fudge factor?
 
I think you will find the 150ah spec test is on a 0.2c discharge test (yours is 0.1c).
The Wh spec is rated @ nominal voltage of 12.8v, so 150x12.8= 1920Wh
These may have affected your results?
Also remember most reputable spec batteries usually test +5% ish higher when new, + your discharge tester will have some + - accuracy tolerance?
I think they are more for comparison testing?
 
So is this battery worth buying? Will it be a good house battery in my RV? Will it be able to start my 4KW generator?
 
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