Battery Question from newbies.

[thor293]

Originally Posted by Bob Denman

Yes... Nice; and pretty expensive!
I guess that I'm only six lucky numbers away from buying a set of them!

Believe me I completely understand! lol

[MiramarTN]

Originally Posted by Tfryman

The best?

Here you go:

https://www.amazon.com/LiFePO4-volt-.../dp/B06XX197GJ

That Amazon page for these batteries says "12 volt Drop in Lead Acid Replacement". Are there other changes that need to be made to the system to support 2 of these batteries? ...charger for lithium batteries?... fuse box?...I am no where even close to an electrician.

[petefoss]

If they drop in, the LiFe balancing charger and a DC to DC converter are on board the battery. It's not just a battery, it's a system that mimics a 12V battery.

[macksz]

Yup, still playing the Lotto..lol

[thor293]

Originally Posted by MiramarTN

That Amazon page for these batteries says "12 volt Drop in Lead Acid Replacement". Are there other changes that need to be made to the system to support 2 of these batteries? ...charger for lithium batteries?... fuse box?...I am no where even close to an electrician.

You can drop them in and use your current charger although a charger for lithium is best. The charger you have now will charge them but it most likely wont charge to full capacity. Given that it most likely would still give more useable power than the lead acid. I have dont a LOT of searching for a lithium charger and 99% are way expensive. Then I decided to check Progressive industries who provides a lot of the inverter/chargers for RV manufacturers.https://www.progressivedyn.com/speci...power-centers/ Make sure if you go searching for one that it has the L with signifies for lithium, or AL it all depends on who is creating the ad. Here is the 60 amp https://rvpowerhouse.com/product/pro...ger-pd9160alv/.
If you are going to drop the cash for Lithiums dont stop because a charger is $200, make use of what the battery is capable of. Nice thing about lithiums is they will completely charge in about 2-3 hours from almost dead on a 200 amp battery. If using a standard charger you arent suppose to let it go into equalization mode.

[Emmett]

What do y’all think about these?

https://www.amazon.com/gp/product/B0...k_ql_qh_dp_hza

They look very interesting, and they’re less expensive.

Emmett

[thor293]

Originally Posted by Emmett

What do y’all think about these?

https://www.amazon.com/gp/product/B0...k_ql_qh_dp_hza

They look very interesting, and they’re less expensive.

Emmett

Nice price but it has no Battery Management System so there may be some danger in maintaining the battery. Do some searching before you invest in them.
Reading through the questions on the page I found they will provide a BMS for $100 extra per 100ah battery. That would put you at about $700 for a 100ah. Still a decent price if the batteries are reliable. I have seen these but looking at reviews on the net scared me away from them. I will wait for your assessment

[petefoss]

And does the BMS make it mimic a lead acid battery? Or do you need to change your converter too?

[thor293]

Originally Posted by petefoss

And does the BMS make it mimic a lead acid battery? Or do you need to change your converter too?

The BMS just protects the battery from overcharging, overheating or voltage drop below specs. I have lifeblue lithiums and they say you can use your regular charger to charge them but it wont be as efficient as a lithium charger. One thing you have to be care of is if using a regular charger and it going into equalization mode, it will attempt to overcharge the battery with voltage.
The nice thing I like about my lithiums is first the dependable voltage under load, running a keurig coffee maker at 13 amps through an inverter my lead acid would kick out the converter due to low voltage under load, these are no problems, lowest I have seen them go is 12.9, my AGMs fully charged under that load would go into the low 11v range.

Second nice thing is the loss of the battery sitting is almost nothing, I left my battery at 72% without plugging it in to charge for 2 weeks and it only dropped to 71%. My agm's would have been dead after 5 days. BUT they are costly! I have 400 ah's and the cost is $3800.