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diy solar

BMS and Valence U27-12XP

ChasRob

New Member
Joined
Dec 28, 2019
Messages
28
hello,I bought a couple of used U27-12XP battery off ebay, at the time I thought they had a complete BMS built in, I later learned otherwise. I want to put these two batteries in parallel in my winnebago view . Just bought 4x 100 watt panel to permanent mount on roof, and have a 100 watt suitcase panel I will add to the system so it can be moved with the sun.Seems there are three options for a BMS for the Valence batteries. Thunderstruckmotors sells a Master BMS for the batteries for $250 but it does not have a temp control. The other would be Muller Industry BMS for the valences at $600 and they have been out of stock for months...so not really an opinion. However the Renogy DC-DC controller might be a solution. Has over voltage protection, overheat protection/battery temp. My question is, will this controller protect the Valence batteries or am I missing something? Any suggestions about using these batteries would be helpful.
 
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