Solar Power Part 2

Sneakers

Just sneakin' around....
Just noticed that 100 AHr LiFe batteries are down to about $300 now.
Gotta be real careful about them. Lots and lots of dealers with lots of offerings, but from what I'm reading very few are liable. Both the battery and the dealer. Even formerly reputable dealers like Renogy have gotten very poor customer reviews lately.
 

PeoplesElbow

Well-Known Member
Gotta be real careful about them. Lots and lots of dealers with lots of offerings, but from what I'm reading very few are liable. Both the battery and the dealer. Even formerly reputable dealers like Renogy have gotten very poor customer reviews lately.
Thanks for the heads up. I have been reading a forum where people buy the individual cells and build their own packs, often buying these cells is a crapshoot because they all come from some shitty Chinese seller.
 

GURPS

INGSOC
PREMO Member
I'd build on out of a couple of AGM Truck Batteries, a Trickle Charger and an appropriate inverter
 

PeoplesElbow

Well-Known Member
I'd build on out of a couple of AGM Truck Batteries, a Trickle Charger and an appropriate inverter
Not a bad idea for something bigger, but an AGM truck battery costs about $300 and weighs what 30-40 lbs? Add a pure sign wave inverter, some good charging circuitry and you're hitting $1k easily.

Only about half the capacity of a deep cycle AGM battery is usable vs a LiFe where you can use 90% of the capacity.
 

GURPS

INGSOC
PREMO Member
Indeed, most of the decent off grid power supply's with a good sized capcity are $ 1500 or more
 

Sneakers

Just sneakin' around....
A LiPo cell can be assembled as well .....
"Can be". Way too many horror stories about bad cell vendors, bad cells, meltdowns.... Don't want to deal with that kind of frustration for something that you want to be available and working at a moment's notice without fail.

Until the battery tech is a lot better, my home-built projects are still using AGMs.
 

Sneakers

Just sneakin' around....
I think I found some good info on this page.

After my mom is gone I'm building a camper van with a solar system.
His videos and website prompted my first builds. Lots of good info. His forums are a good source of user experience, if you can look past the constant repeat of the same newbie questions over and over and over.

For battery builds, this guy is good too.
 
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