Recent content by Wjm1964

Unfortunately, Renogy customer service is poor at the best of times. I watched a video where the 100Ah Pro version failed to stop discharge at 10V and went into low voltage protection and wouldn't wake up. They sent the guy another battery and almost same thing, except this replacement took a...

I think DC HOUSE are rebranded Eco-Worthy units and I watched a teardown on the tube of their 12v 100ah units, Build quality seemed pretty good for such a low price but if my memory serves me right it didn't shut off during 0.2C discharge at 10V but didn't go into limp mode.

There's a video on YouTube where a guy freezes then discharged a lifepo4 battery from Li-Time. It still worked and was interested to see how the voltage actually increased as the battery warmed up.

Disregard as there were replies posted while I typed

FET locked can be reset by touching the slider button (yellow background) next to POWER off and on again. Usually resets it but when it's FET locked one of those slider buttons is usually highlighted in red, either charge or discharge side.

I watched a youtube video on the litime mini being frozen then discharged. Had pouch cells and compressed between 2 steel plates. Was interesting to see how the voltage increased as it defrosted.

Yeah I watched that too, look like rebranded eco worthy but the capacity test went to 7v but for the price I'd open up and swap out the bms as it should stop at 10v

This is why I never buy something based on a "paid promotion" video on the tube or until they have been around a few years. These paid actors simply jump from product to product (usually the ones paying the best commission on sales) and I see them contradict themselves over and over again. Feel...

I watched one get tested and tore apart on YT but UK based. It wasn't the worst built battery i have seen personally but the BMS let the battery drain well below 10V at a 0.2 capacity test and in the UK ebay website i saw this code BUYBETTER25 which means it is 187GBP still way more than the US...

By the way, which BMS in the string failed The main positive battery from the 4 in series. The main negative and the other 2 batteries were unaffected. As I know the max amps I pulled couldn't be to blame, I wondered if it just didn't like 48V hence trying to educate myself a bit more about...

Yes I believe I did everything to the letter. Now my confusion is with how to determine if the Mosfets on a BMS suitable for series connection are only good for 24V set ups instead of a 48V system. It seems difficult to get any information on mosfet voltage types and limits. There are so many...

To my knowledge that inverter won't be programmable for set charge times. Assuming your in the uk going by the links there are some inverters that are compatible with octopus energy, givenergy systems for example solis inverters can be set to charge at the cheap rates. The eco worthy will no...

Battery prices are dropping which is great but when you consider a DIY build there are many additional costs such as tools, wires, bms, power supply for top balancing etc which soon add up and as such I'd say buy a pre built unit to meet your demands. Added bonus is a warranty if you buy from a...

The fact Will is looking for new ideas for content goes to show how over saturated the solar market has become. Every topic and use case has been well covered by Will and others on the Internet.

These bms heat functions will only work when they see a charge voltage and the other issue is if the charge circuit is off and the temperature drops the low temp side will also kick in and stop charging anyway. Ideally the bms should take or allow some voltage to go to heat pads only until...