For RV / Solar : $674.99 Renogy 12 volt 100 Ah Lithium iron phosphate battery,

rokask wrote: ↑There's the convenience factor I suppose... Or if you need the specific size slot in an RV or smth.
Though, if you want to tinker a bit yourself, you could DIY a bit:


Recently discovered this old german living in Australia playing around with the LiFePO4 cells from china. You'd need to buy 4 cells to make 12V, sting them in series and add a BMS on top. This would get you roughly 2.5 times more amp-hours (amount of electricity storage) for, probably 30% cheaper. There are smaller cells too for cheaper that would give you the equivalent amount of amp-hours at half the price (a bit of a guess cause I didn't look at the price of the battery).

rokask wrote: ↑ There's the convenience factor I suppose... Or if you need the specific size slot in an RV or smth.
Though, if you want to tinker a bit yourself, you could DIY a bit:


Recently discovered this old german living in Australia playing around with the LiFePO4 cells from china. You'd need to buy 4 cells to make 12V, sting them in series and add a BMS on top. This would get you roughly 2.5 times more amp-hours (amount of electricity storage) for, probably 30% cheaper. There are smaller cells too for cheaper that would give you the equivalent amount of amp-hours at half the price (a bit of a guess cause I didn't look at the price of the battery).

naimc wrote: ↑ Yeah I watch his stuff its very interesting, From what I understand all the LiFePO4 deals were last year before the pandemic, apparently the cost of shipping this stuff to NA has increased 3 fold.

I did some quick math and most battery kits, 4 x 280 Ah 3.2 volt cell and bus bars come out to about $600 CAN, plus you have to add a 100 amp BMS, quality one seem to be around $100-150 USD. then you need some cables crimps tool crimps, a smarts battery shunt meter add in custom charger so you can balance the 3.2 volt cell before you build the pack, then add a fancy wather proof case. In my area above the cost of a renogy battery with strange form factor.


I was thinking of a diy a pack using this : https://batteryhookup.com/products/new- ... ah-cells-1 So that $240 USD plus $78 for shipping = $315 plus I guss you have to add duties and taxes, again you have add the battery case, BMS, terminals cables, crimp tools smarth battery shunt / meter to have idea of the battery state.

naimc wrote: ↑ Yeah I watch his stuff its very interesting, From what I understand all the LiFePO4 deals were last year before the pandemic, apparently the cost of shipping this stuff to NA has increased 3 fold.

I did some quick math and most battery kits, 4 x 280 Ah 3.2 volt cell and bus bars come out to about $600 CAN, plus you have to add a 100 amp BMS, quality one seem to be around $100-150 USD. then you need some cables crimps tool crimps, a smarts battery shunt meter add in custom charger so you can balance the 3.2 volt cell before you build the pack, then add a fancy wather proof case. In my area above the cost of a renogy battery with strange form factor.

Rich_D wrote: ↑ Shows $749.99 for me...

Erkdajerk wrote: ↑ Renogy’s charger is expensive and sole purpose (lithium only). Any recommendations for a lithium-compatible universal 120V charger? I’m thinking AliExpress since even Amazon ain’t cheap.