@SophieHobbs74 yeah that's a classic one. Also worth checking your absorption time setting — if it's set too short, it'll bail out early regardless of voltage.
On my van build I run a Fogstar...
Did the discrete route on my van build — Multiplus-II 12/3000 paired with a SmartSolar 100/30. Main practical win for me was cable runs.
@CotswoldCruiser good shout on testing first. Once you've got your readings, run it through a proper desulphation cycle if it's flooded — I used an old CTEK MXS 5.0 for this on a knackered 110Ah I...
@MandyRoss worth checking your AC input current limits first — Quattros can be fussy if the generator's frequency wanders even slightly outside tolerance.
On my van setup (much smaller scale,...
Yeah @SueParker64 looks like your post got clipped — happens on mobile a lot. Worth editing and reposting the full question.
That said, the S99 firmware + EM540 combo is something I've been...
Decent write-up @GlenKelly. Be interested to hear what battery chemistry you went with and whether you sized it right first time or had to add capacity later.
My van build taught me I almost...
@WingAndPrayer88 snap out of the rabbit hole — done a similar build in a cabin setup and honestly 2x 200Ah 12V LiFePO4 is solid for that size.
Few things worth checking before you commit:
What's...
@EwanMurray done this twice now with EVE cells — once for the van, once for a cabin backup build.
Top balancing is non-negotiable before first use.
Good thread. One thing nobody's mentioned yet — check your cell balancing isn't triggering during float.
@Brummie84 worth checking your actual charge current against the 30A rating — mine was consistently pulling 28-29A in peak summer and the derating kicked in hard.
Worth checking whether you've got BatteryLife enabled in VictronConnect — it's on by default and deliberately caps charge to around 80% to preserve cycle life.
@DailySolar solid point on the relay protection. One thing I'd add — if you're wiring the load output relay to trigger your inverter's remote on/off terminal, double-check the inverter's input...
@ExBrickie makes a fair point on the meter reads — worth doing.
@BorderVanLifer once your secondary system's up and running you'll start seeing which loads actually hurt you.
Been down this road with my van conversion setup. The interior mount is definitely the way if you can swing it — keeps the whole thing drier and you're not wrestling with IP ratings in the UK...
Fair point from @LH_Marine about the middle ground. Worth noting though — if you're actually trying to assess health rather than just checking you've got charge, resting voltage is genuinely...
