Recent content by heavy-impact

Li-po cells, 4400mah each with a 4A BMS. I make a 4s25p pack with them and house it in a 50cal ammo can. The should be 110ah but I think it will deliver much more. The only time I tested with a meter on it I drew 11 amps for exactly 5 hours and only dropped 1.5v

I didn't see a li-ion version and their price is 5x higher. For my particular use in this case the lower priced units make more sense. I'm retired and have to manage money carefully now that the blithering idiot in the white house and his handlers have wrecked our economy.

It'll never see more than a 51A load. I have a 60A on a pack exactly like this one that works well but all the US vendors were sold out so I had to order from china. Since the price was low and the shipping slow a bigger one was the way to go. I'm no EE but I do work on electronics and have a...

I think I'll go with a Daly 100A common port for $28 shipped.

Please suggest a true 60A li-ion common port BMS and where to buy.

Just got an email from batteryhookup.com stating parallel BMSs on the same battery for higher current draw is fine.

I wanted to do about the same with two cheap 40A BMSs in parallel on a 4s pack to deliver more current. I'm waiting on a answer from an EE. I have one built and housed in a 50cal ammo can made up of 100 medical 4400ma li-po packs each being 2 cells in parallel with their own 4A BMS. so there are...

Why would you heat "hot" water?

You can purchase a new LM224 op amp if need be and bypass the bad section of trace by soldering a piece of wire from one solder point to the next. If your hands aren't steady enough take all the parts to an electronics repair shop or TV repair shop and point out what you want soldered. Good luck.

My sons are in their 30s now and grew up with an unvented propane heater in their room. Never caused a problem, both are in perfect health and neither one has been to a doctor more than six or seven times in their lives. I've never heard of anyone having a health issue from a propane space...

Indoors / Outdoor Use Perhaps one of the best features of the Mr. Heater Buddy is that it can be used both indoors and outdoors. Many portable propane heaters can be dangerous when used indoors due to the risk of carbon dioxide poisoning. However, the Mr Heater Buddy has a sensor that...

The Buddy heaters are very good quality and easy to use but the ones that mount directly on top the propane cylinder are much cheaper and compact. Better still is a propane kitchen stove since you can still cook, heat water for bathing and heat the house. My two front stovetop burners are 17,000...

Please forgive me... the words then and than are not interchangeable. https://www.merriam-webster.com/words-at-play/when-to-use-then-and-than. I know I sound like an ass but my intention is to help.

Look up the number on the chip, get a schematic and trace the leg comparing reference voltage. You can also contact any chinese manufacturer and request the information from their engineer. Just tell them it's off and you want to correct it yourself.

No, the cutoff will continue working at about 2.5v less than the factory setting.