Forum Discussion
BFL13
Jan 12, 2021Explorer II
StirCrazy wrote:BFL13 wrote:
Understand the "density" point. BUT--we are talking about "space" for one battery in the battery compartment. The SiO2 27 is a 27. You can run it down to a low SOC no problems so you can have more AH in the same 27 space, which is what the OP wants.
I don't know the true story about Li charging, but I suspect others will want to comment on using a 6300 converter for that. Should be interesting! :)
and the same ah in LiFeO4 is about 1/3 the size. so for a limited battery space the Li is the better choice. also a lot lighter for the same AH capacity.
Steve
Must be a typo or something there?
A Walmart G27 is 12.65 x 6.9 x 8.94 inches and 49 lbs
A Relion 100AH LFP is 13 x 6.8 x 8.9 and 32 lbs
A Trillium 111AH LFP is 12.07 x 6.57 x 8.63 and 30lbs
A Stark 105AH AGM is 12.9 x 6.8 x 8.7 and 66 lbs
An SiO2 100AH is 12.28 x 6.72 x 8.6 and 60 lbs
Another thing about battery compartments in RVs is their odd shapes and any pipes or whatever in them, so battery orientation could determine how many you can get in. Some you can put end up or not, or just on their sides, but none upside down
Allowance for wiring needed too--stiff wires can't be bent in much--it all depends.
LFP "roll your own" needs a box and keep the cells tight so no vibration, lots of wires and a BMS. I dont know what that takes for volume or shape as to what would fit in the OP's battery compartment--he would have to figure that out.
Also he needs room for the heat pads and whatever wiring they take with LFP.
On that 6300--I would toss that whatever kind of battery. In the MH I kept the 6300 panels and swapped out the charger for a PowerMax modern type. The TC original charger was gone and the prev. owner used a portable charger. I tossed that and use a deck mount PowerMax converter in there.
The OP has a 32 amper for the TC which is ok for a 100AH batt, but if he gets more AH, more amps of a charger would be good. Depends on the battery charging spec. 30% charging rate is max for AGMs and SiO2s, eg.
LFP can take way more.
You have to juggle the charger size in amps with the size of the portable gen you can take along to run the charger. That is my limit in the Class C. Can't carry a 3000w gen, but can carry a 2200, so 75 amps is my limit for a charger. The OP has to figure that all out for his own rig as to what is possible.
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