Recent content by pullin_gs

Thanks all for the detailed replies. It is really helpful especially since I'm new to LIFEPO4 chemistry. Anyway, I charged the 24V packs (not individual cells) at 1/5C and both packs took in rated AH before BMS (or charger) shut things down at around 29.2V (3.65V/cell) It's been a few hours and...

Packs have never seen a load. Storage self-discharge is too low though One pack cell voltage is 1.7V The other pack cell voltage is 2.0V No visible swelling. Are these packs done?

I ran into the same problem. Vendor (eBay makeskyblue_usa) never replied when I reached out. The only thing you can do is to hook it up to half-way charged 36V battery, set params, and never turn it off!?!? This is a fie waiting to happen.

More panels... Plan on scaling panel count to be able to provide at least 75% Kwh capacity of battery an typical day, while at same time covering 100% of house load during day. If you have lots of shady days, up panel count even more.

Since going online 6 months ago, I had to replace one fan in one of the charge controllers. Nothing else has needed servicing or updating. I do check DC/AC voltages (large panel meters visible from anywhere in garage) several times a day. I also shut system down and put circuits back on grid...

That is one efficient pump! I'm looking into it. My "smart" pool system is currently a pretty high-end Hayward integration, so not sure how a non-Hayward pump will integrate into the system.

Pool is only 5000gal "spool". I'm going to go ahead and transition filter circulation pump function (not jets) over to smaller 110VAC 3/4HP pump and put it on off-grid circuit. Will keep 240VAC pump and install 2nd pump by tapping into one of the suctions (it has 4....two in spool, and 2 in...

In my situation, the generator charges the battery and does not directly power loads. The inverter draws from battery to power loads. 1/2 of my home's circuits are off-grid (selectable between grid&solar via 6-circuit transfer switch) I have a small inverter-generator that is setup (manual...

Yes, you will indeed get more cycles. But you will need to INCREASE the #cycles to realize equivalent KWH of capacity (applies more to cars). .....or increase battery pack size to be able to provide enough KWH capacity to meet night/cloudy power requiements. Translation: Increase the number of...

I'm leaning towards just plugging this into AC of generator (instead of modifying DC output of generator)...

Interested in charging 16Kwh 36V battery directly from Inverter-Generator (Not interested in using powersupply tied to 120VAC output of inverter-generator. Has anyone ever removed/bypassed inverter portion of generator and dumped DC generator output (or rectified AC alternator output?) directly...

Are your batteries fully charged? MPP controller will scale back power-in to batteries when full.

Not exactly "large scale", but my 1st solar project w/ESS is pretty cool nonetheless. :) It has been going strong for almost 10 years. :cool: I used NIMH because of charging simplicity and robustness: *) 1/10C, battery will sink current without overcharge concerns *) Battery can be discharged to...

I have 6 circuits "off-grid" (I use a 6-circuit transfer switch) right now. No net metering. Principle requirement is grid independence and power backup. My upfront cost is very low. Payback is 8 years based on Kwh production.....Duke powerbill will always be more than $50, so wont hit...

pullin_gs said: But you did not answer question as to how my application will burn down my house. Fair enough. You punted. :-) Having a thorough understanding of the issues (mainly having to do with disconnect arcing) and how it is mitigated by contact-design does indeed allow one to assess...