Recent content by Thingol

Live and learn indeed, just from writing up my own experience with Sunpal batteries..sigh

I'm curious, how did you find out the inverters were rebadged from elsewhere?

Please reread my post. To clarify: 1) I was never offered free replacement. Items under warranty ought be replaced at seller's cost in full, especially in the event of outright foulplay. 2) They offered to *partially* replace the faulty batteries if and when I bought more from them. No. I have...

I wanted to share my experience here, mostly for the benefit of others to ensure nobody else goes through the horrible experience I had with Sunpal Power Co., Ltd, Hefei, Anhui, China, a seller I found on the Alibaba platform (see link to supplier profile). If this sounds like one of those "do...

Hello Michiganman, DO NOT touch SUNPAL. Their panels are fine (so far for me) but they are as dishonest as these outfits get. They sold me old, end of life batteries that were disguised as new at the price of new. Cliché right? I will write this up here soon. I repeat, avoid them like the...

Thanks a lot for the info-I'll have someone take them all out and measure the resistance correctly! The problem is that the thing is at my project site in Kenya so sending it out your way is prohibitively expensive. I will bring it back to Europe with me next time I go though-and check with you...

I recently purchased this JBD BMS here at the IC GOGOGO Aliex store and I am currently locked in a refund tussle with the seller. Seller is unsurprisingly unwilling to replace or refund. I would like some assistance diagnosing and fixing the problem to see whether repair would be the best...

Hello folks, I am having some trouble decoding the technical details of the cells in the attached photos. These are BYD, but the serial number does not appear to follow the modern naming convention as with EVE cells for example. According to the guide here, the number of digits should be 19 or...

I spoke to the current contact person on their Alibaba page (Daisy) and they told me that these were no longer in stock. Is there any reason to shun used cells, especially if they have been tested and the IR+capacity are good and matched? I would not mind used cells that are well tested and...

I am looking at these ones here to expand my storage-what do you think? There doesn't seem to be much user feedback out here on all these 400-500ah cells : https://www.alibaba.com/product-detail/500Ah-Lifepo4-Lithium-ion-Cell-big_1600337159436.html?spm=a2700.9114905.0.0.MWNROo

Hello Aslan again, after about 8 months of use, I am having serious problems with two of the five batteries I bought. From my discussions with Sunpal, it looks like they will not honor their terms of warranty, and are offering to add two new batteries "with my next order" i.e., pay them more...

How sir? I cannot find this use case in Batrium docs and how-to's..

I see the Kilovault balancer you linked will draw up to 10Amps from the higher voltage battery. Victron balancers on the other hand will draw a maximum of 0.7Amps. I am guessing the Kilovault and other such balancers will correct imbalances quicker. The difference is huge though, why is that?

"Your imagined solution does not exist."- this is what I really needed to hear.- I thought I was not searching properly. I was holding on getting Victron balancers thinking I might come across some magic solution in the form of a 4s, 48V balancer. I am familiar with the other workarounds of the...

For those of us already with 4x 12V LiFePo batteries in series, what BMS can we use to manage the whole bank? I suppose it would be a 4S, 48V one but I cannot find such a product anywhere, any leads?