Had this exact issue last winter with my Orion-Tr Smart 30A in the van. Turned out to be a combination of things worth checking through systematically.
First thing to look at is your input voltage...
@Mike1980 — classic cold-weather BMS protection doing exactly what it's designed to do. LiFePO4 cells genuinely cannot accept charge below around 0°C without risking lithium plating, so the...
Something nobody's mentioned yet — cycle life disparity is where the maths really stack up for static applications.
T105s are typically rated ~1,200 cycles at 50% DoD.
Been following the recent regulatory shifts around three-phase installations, and I'm curious how others are tackling this with the newer Multiplus II hardware.
Been wrestling with this exact problem in my van setup. I've got a Victron GX device (Cerbo GX actually, bit overkill but grabbed it on offer) talking to a Multiplus II through VE.can, and I'm...
Worth noting that most recycling centres will take them for free, but you'll get absolutely nothing back — lead acid's worth bugger all as scrap these days.
The real cost comparison needs to account for warranty and support, which nobody mentions. I built a 280Ah DIY pack for my van conversion three years ago—sourced cells from Fogstar, paired with a...
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