Apr-20-2021 05:46 PM
Apr-21-2021 05:29 PM
otrfun wrote:Avid Fox wrote:We just built a 200ah LifePo4 battery pack that fits inside a group 24 battery box for approx. $750 purchasing cells and BMS from US distributors (~$550 purchasing from China). I've easily gotten ~160ah out of this battery pack under high loads (>100a) discharging from 100 to ~20% SOC.
I can carry two group 29s in my AF1150.
Are they worth it?
You could easily fit two of these in your truck camper. This could provide you with 320-360ah of unrestricted, usable power without stressing the battery. LifePo4's can be discharged down to almost 10% SOC under extremely high loads with only a .2v to .3v voltage drop (lead cells drop 2-3 times as much). With proper cabling you'll have zero worries about low voltage inverter alarms.
With 320-360ah you could power a typical 10k-11k truck camper a/c (120vac, 10-11a) for at least 3 hours (100 to 20% SOC) with the compressor running 100%. With the compressor cycling you could probably get 4-5 hours. Amazing performance from just two, small group 24 sized LifePo4 DIY battery packs!
Apr-21-2021 04:40 PM
Avid Fox wrote:We just built a 200ah LifePo4 battery pack that fits inside a group 24 battery box for approx. $750 purchasing cells and BMS from US distributors (~$550 purchasing from China). I've easily gotten ~160ah out of this battery pack under high loads (>100a) discharging from 100 to ~20% SOC.
I can carry two group 29s in my AF1150.
Are they worth it?
Apr-21-2021 04:37 PM
Apr-21-2021 04:36 PM
Avid Fox wrote:
Desert, mountains, generally unplugged. I usually hit a campground of some kind about every 4 days or so just to dump and fill.
Apr-21-2021 04:22 PM
Apr-21-2021 04:00 PM
Avid Fox wrote:
I already have a generator in the AF1150. I just don't like running it at 6am when coffee needs to be made, or when I want the electric mattress pad on. Inverters are awesome. Just last week I pulled the 100lb generator out of my camper. Rides better now too.
Apr-21-2021 02:13 PM
Kayteg1 wrote:Siletzspey wrote:
....
For my truck camper and boondocking, 300W of solar in summer gives me a surplus of power in summer, and FLA/AGM would be fine. Come winter with solar production way down and furnace times way up, I could only survive long stints with LiFePO4, hence I went LiFePO4 despite the cost.
--tg
You could spend $150 on 1000W inverter generator and survive it even better, although with less convenience.
It is all about how much money you are willing to spend on doing nothing down the road.
Apr-21-2021 10:54 AM
Siletzspey wrote:
....
For my truck camper and boondocking, 300W of solar in summer gives me a surplus of power in summer, and FLA/AGM would be fine. Come winter with solar production way down and furnace times way up, I could only survive long stints with LiFePO4, hence I went LiFePO4 despite the cost.
--tg
Apr-21-2021 10:28 AM
Apr-21-2021 09:56 AM
Apr-21-2021 09:44 AM
Apr-21-2021 09:19 AM
Add required B2B charger and you are in 4-digits very fast.
Apr-21-2021 09:11 AM
jaycocreek wrote:
They are definitely worth it,especially for a truck camper..100ah lifepo4 batteries start around $399 with quite a few in the $400 range and a bunch in the $500 range...Buy 2 good agm's for 100ah and your in the $400's.
Apr-21-2021 08:40 AM
Apr-21-2021 07:59 AM