Recent content by BuddyGMan

Note that it is back, but it is no longer a mini. The listing says mini, but the picture and dimensions show another story at 18.98" in length.

FYI, the Keepworth 300ahr lowered the price, sold out, and removed the listing. Not sure if this is related to simply no stock or if the mini 300ahr experiment will not continue. The other two listed above are still available.

720 Watts is perfectly 36 volts and 20 ahr. This seems like e-bike batteries to me. The issue is the BMS. Most are set to about 20 -30 amps continuous and 50 -70 amps peak. So instead of buying a 20 ahr pack, buy multiple smaller ones to put in parallel. This parallel idea might be even better...

The meter is only an inch high, but maybe this? https://a.aliexpress.com/_mtgJXjK

This is the PQ Mini I just bought a set my second mini. With the coupon until Sept 18th, it is about $233 before tax. https://www.ebay.com/itm/364209606546?mkcid=16&mkevt=1&mkrid=711-127632-2357-0&ssspo=q3x8xpomsk-&sssrc=4429486&ssuid=9hArf1xwTDm&var=&widget_ver=artemis&media=COPY

I have one that has been through a couple of cycles. Seems nice. I do use it in the back of my car to run a fridge on certain occasions. There isn't enough data there to be useful, with a sample size of 1 and a couple of months of use. I did watch random YT videos on teardowns and the Power...

Took the plung on the Eco Worthy 260 ah 12vdc pack. Stayed with 12 vdc, as it is replacing a deep cycle on a higher end battery backed up sump pump. It will also power my internet source, router, switches, etc. Also thinking about getting a LF inverter to power the main sump pump. This wasn't a...

Might try two of these. Looks like they might just fit. https://www.amazon.com/gp/product/B0BX8S2VJ5/ref=ox_sc_act_title_1?smid=ARUKXJLE7BDB9&psc=1

So I grabbed an EB3A and updated the firmware. Tried it for a few days on my computer as a UPS. ~90 watts. Absolutely no issues. During the last wet heavy snowfall, I put it on my CPAP in UPS mode. The grid didn't go down, but my CPAP turned off on me during the night. So the UPS range where...

I have been using the NPB-750-12 for about 4 months now. Selected it due to the high efficiency. The AIMS lists theirs in the 80 something percent efficient. This is listed at 92%. So in the long run, a quieter, cooler supply with less wasted conversion power. My system is an overkill inverter...

Just saw the 250 ahr versions of the Vestwoods come back online at Amazon. They now sell a version with a 100 ah BMS and a 200 ah BMS. So there were internal changes to at least one of the models. Wonder if they changed the cells or if these will still be 20 ahr short....

Thanks. I missed the Ampere time. I also came back to say that I thought I answered my own question. There are 200 Ah 24 vdc batteries at the approximate same weight and size, so of course the cells have to fit.

So I ran across this today: Power Queen 12.8V 410Ah LiFePO4 Battery, 5248Wh Energy Lithium Battery Built in 250A BMS Price is more than double the 200 Ah, but the size is the same. Weight is 36 kg at 410 Ah. The 200 Ah is 22 kg. Picture shows 8 cells, so 4S2P cell config. Here is where I am a...