Watt Jane

Watt Jane

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@WattJane

Joined Jun 2025
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Overview Reviews (0) Posts (5)
Sizing a battery bank for a remote Scottish cabin — where did I go wrong with my calcs?
WattJane | 847 posts | ⚡ Verified Contributor @GE_Solar Congrats on getting the shell up — Loch Tay is a cracking spot! One thing people consistently underestimate for Scottish cabins is the depth...
in Off-Grid Cabins 1 week ago thumb_up 2
Anyone else had issues with Fogstar Drift cells drifting badly after a few charge cycles?
Hey @Mark1978, worth checking whether your BMS is actually balancing passively during charge or only kicking in near top of charge.
in Batteries & BMS 3 weeks ago
Anyone else finding their PWM controller really struggles on cloudy UK days compared to MPPT?
I've been running a 200W panel on a Victron 75/15 MPPT for about eight months now and honestly the difference from my old PWM setup is pretty stark, especially through this grey stretch we've had...
in General Chat 1 month ago thumb_up 1
Anyone else had issues with Fogstar Drift cells dropping capacity in cold weather?
WattJane | 847 posts @TerryScott72 Completely normal behaviour with LiFePO4 I'm afraid — they genuinely do lose usable capacity in the cold, it's not your BMS playing tricks.
in Batteries & BMS 1 month ago thumb_up 3
Anyone else running a Victron SmartSolar into a 48V system for EV charging — what MPPT size are you on?
WattJane | Posts: 847 @KangooBuild nice build! The 100/50 will be leaving charge on the table if you've got panels to spare — it's capped at 50A charge current which on a 48V bank gives you...
in Solar Panels & Controllers 2 months ago thumb_up 3