Trojan batteries Jan 15, 2020 11:16:44 GMT via mobile
Post by kris on Jan 15, 2020 11:16:44 GMT
they have a LiFePO4 setting so just run it off the starter battery.
incidentally the same argument for low voltage disconnect applies to Pb as well
Sterling do the AtoB (alternator to battery) as well as the B2B you mention above. The B2B would I think do the job, though I'm not a fan of Sterling stuff. But at quite a price if you want one that can pump a reasonable amount of current out.
The A to Bs are cheaper but, while I can't be sure, I suspect that they only boost the voltage, they cant reduce it. So you would need a basic alternator regulator voltage down at say 13.6 and use the A2B to increase it. I am fairly sure an AtoB can't say reduce 14.4v output to 13.6v.
All of which is of course why I am designing my own alternator controller - long term project though.
No I disagree that the same low disconnect argument applies to LA. LA batteries make it obvious they are getting flat - light go dim over a prolonged period. Whereas LiFePO4 hold up and are fine - right until the moment the voltage crashes. And anyway, fully discharging a LA battery, whilst bad for it, isnt catastrophic. Fully discharging a LiFePO4 battery is catastrophic. As borne out by the fact that drop in LiFePO4 replacements have low voltage cut off whereas I don't think any or many LA installations have it.
I’m not sure these bits of sterling kit do the job either, no where in their literature do they mention lithium batteries.