LOL, no, but it lasts more than 4 days between charges, so I have yet to run it all the way down.

I got the case put back together with the new battery. With the smaller battery, the whole thing weighs a bit less now at about 17 lbs. And there's a little room for an extra pocket. https://i.pinimg.com/originals/60/d5/8d/60d58d972166a68ecdd3e965e3196f42.jpg I've used the CPAP on the battery for th...

I used an iMax charger/discharger to top off and balance all the series, and the a regular discharge, then recharge. This time, with actual working fuses, LOL, they all stayed close enough for the BMS to take care of what was imbalance was left, if any. As for What-Hours, I haven't tested that yet. ...

I got the 6s6p battery assembled. This time it goes through the whole charge cycle without getting imbalanced.

Sorry, I have no clues to give about reverse engineering or counterfeits. I bought an aftermarket 12/24 VDC converter from Amazon, and it works perfectly.

Your best bet is to get a 12/24 VDC converter, or a 24 VAC power supply. As far as I know, the barrel connector is proprietary, and no one has ever found one by itself.

I'm sorry you had to learn the hard way that not all batteries are the same. In the case of Li-Ion, that can be a dangerous lesson, LOL. So by far the most useful place I've been to as far as information is secondlifestorage.com. This is a forum that focuses on DIY powerwalls and collecting used 186...

I don't usually count up the cost of my various weird projects, as it spoils the fun. But in this case, one of the goals was to make a battery just as safe, but way cheaper than what's on the market. After adding up all the parts costs, it looks like the whole thing, case and all, will be a bit unde...

Now that I have the wires and fuses off the battery, I was able to test the fuses for continuity. Turns out there are 4 bad fuses. Even though they look fine, they may have been defective right out of the bag. https://i.pinimg.com/originals/ca/f6/87/caf68785e2e628ea819e35b2f5c60c98.jpg I've marked t...

I got all 6 series tested on the CPAP battery, and here's the results: 1: 23.2 Ah 2: 27.1 Ah 3: 26.1 Ah 4: 15.2 Ah 5: 26.6 Ah 6: 18.5 Ah Series 4 was definitely the one that caused the BMS to shut off the whole battery. But series 6 wouldn't have been far behind. I'm not sure why there is such a lar...

I ran the CPAP off the battery for 12 days, I think. It shut off some time at night, but I was able to get some numbers. It looks like one of my series discharged faster than the others. When it reached 2.5V the BMS did its job and shut the whole thing down. So I didn't get the full 632 Wh I was exp...

Finished! I finally took an afternoon to build the little power box. https://i.pinimg.com/originals/65/54/ff/6554ffe22f01ef0168781d17e674b8dd.jpg https://i.pinimg.com/originals/b9/4a/cb/b94acb0d3042e766efbf81121dfd099f.jpg https://i.pinimg.com/originals/8a/30/a4/8a30a4da732122bf828e89e4a5f38b75.jpg ...

I'll be happy to. Remind me if I forget. Haven't made much progress lately, but here is a pic that I don't think I've shared yet: https://i.pinimg.com/originals/b9/92/88/b992889cdf816c66a3c5c8a605515bcc.jpg I need to build a little box for the Watt meter and switch to fit into, and then it's just ho...

No, I'm planning to camp with it.

Started fitting all the parts into the case: https://i.pinimg.com/originals/b9/92/88/b992889cdf816c66a3c5c8a605515bcc.jpg Unfortunately, there's no room for the charging hardware, so that will have to stay out. Not a huge loss, just would have been nice. The power meter and switch still need a box t...