Recent content by PhiPhi

Back to the original question of the post, yes and no is the unsatisfactory but correct answer. For me in S.E.Asia a few degrees off the equator it is a resounding yes with my DIY 5.5kW off grid system, for those elsewhere it seems that mark-ups and installation costs are incredibly high which...

I think there could be a good market potential for basic off-grid/hybrid inverter based kits. Keep it simple and off clear and concise online videos, pdf schematics with an emphasis on safety and the requisite disclaimers.

AFAIK I think the biggest pro for 2 packs is redundancy so if one is faulting the other is still online the con is the extra cost of the BMS.

@ITman73-2 I think it would help if you could supply more info and the solar input specs of the delta pros. It sounded like you want to store the panels and only use in an emergency to keep the delta pros going? Also are the delta pros discrete or can they work in tandem?

The OP stated a 1.3kWh package so I'd imagine the original module had already been disassemble and reconfigured into 4s 14.4v batteries.

With a sample of 1, myself, take this for what it's worth. I think the BMW/I3 batteries will be composed of 4 x 93ah Samsung SDI NMC cells which I've had fantastic results with. According to the specs they are very safe and have an excellent lifecycle, I brought 14 secondhand cells and a...

If you're welding galvanized steel outdoors the worst you can expect is a runny nose unless you're welding with your nose a couple of inches from the work. I usually use an angle grinder to remove the zinc from the work surfaces not because of fear of poisoning but for faster, easier welds on...

@newbostonconst Thank you very much! In that case I'll stick with the simpler configuration of paralleling the 2 packs rather than individual cells.

Well I guess it wasn't as easy question as I thought.

Hi I'm new here and was not sure the best place for this question. I currently have a 24v 7s 94Ah battery using Samsung SDI NMC cells, I haven't yet hooked up a my BMS but as a precaution have setup very conservative charging/discharging parameters on the MPPT/Hybrid inverter and check the cell...