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yes oversized to start. Thanks for double check

got my hands on some new hardware last night - picked up a Daly blue tooth 4s 12v 200A which will be better suited to this boat project. Plan now is to: use 2500 watt inverter upgrade power and ground bus cables to handle 200+ Amps use 200 Amp breaker use Daly 200 Amp BMS with ABC switch A to...

Working like a charm after I upgraded two things - one the inverter was 20 years old and when I touched the case it zapped me a bit so swapped for new 2400. Two, I had the wrong Amperage fuse/breaker. 40AMP worked fine for A/C, Fans, and small items but if I tried coffee pot or microwave (even...

Anyone got one on a shelf they dont need? Message me if you do. Thanks!

Thanks Filter - based on your recommendations I found the tutorial and see what I am doing wrong here. Will reswizzle it.

Simple question (I hope): I have a 190AH 12V LIFEPO4 with a BMS rated 60AMP discharge and 30Amp charge. It is connected to a new 12 volt 2500watt pure SINE inverter (peaks at 5000). Between the two devices I am running the same gauge wire as the BMS Negative wire. The Plus connects to a 40Amp...

I cant solder to save my life....I think they are junk from ebay to begin with so time to replace them.

Actually the LIFEPO4 is it's own battery bank and does not touch the other 12-volt banks. I think I am going to simply purchase a small 10Amp LIFEPO4 specific charger to keep things simple. Thanks for info!

I use a Guest chargePro to charge 3 banks on a boat. Looking to leave lead acid for starter motors but go LIFEPO4 for “house” battery. Can this work? Home built 75AH LifePo4 battery does not need to be 100% optimized. Thanks as always!

I have two 100watt flexible solar panels from fleabay that stopped working and of course the seller is MIA and unresponsive. Hate to throw them away. Both panels have fried diodes ... can these be replaced by someone with limited soldering skills. Thanks for your ideas/recommendations.

Good stuff Eggo - Thanks. The use case is supplemental A/C on a boat. Every "blue moon" we will want A/C for sleeping or to cool down cabin. A/C is new and very efficient so 1500 Watt inverter drives it without issue and very low over-all Amps even when compressor kicking in. Shutting down...

any feedback?

Thanks all - always helpful! Perhaps I am better off taking the "scrub" mismatched batteries and make one larger lower AH 12V and call it a day? ie. combine the 75AH and 50AH cells into a bigger pack and have an ABC switch - A to Load, B to 175AH pack, and C to 50AH "mutt" pack.

Can you clarify this? Do you mean it will burn down the garage or that it will not allow me to use 100% of each battery bank (which I can live with as long as it is safe? Thanks!

Time to turn that back porch lanai into a solar array?

Thanks - Interesting inputs. Perhaps I should have an ABC switch and simply flip between batts as needed.

Working on yet another budget LifePO4 project. Goal is to have more 12V capacity for a small room air conditioner and use the battery packs I have. I have Three (3) 12V battery packs each using the exact same BMS (each). One Pack is 175AH, one is 75AH, and one is 50AH. Batteries are different...

Embarked on a project during Covid to convert a Promaster Van and have it be all electric - no propane, no gas generators, and as simple as possible. Having zero solar or LIFEPO4 experience I relied heavily on this forum to design, build, and implement a 24V system to drive a roof A/C (in...

My 20-year old 50AMP 3 Bank charger gave up the ghost last week so I am looking to re-swizzle things on the Boat....add capacity and lose some dead weight. Each motor has it's own sealed acid starter battery and I am converting my "House" battery bank from multiple 6V Lead Acid pigs to...

Agree with above however, I was on a budget and found the slightly used roof A/C for $300 and wanted it to be a low profile as possible, already planned on LV2424 all-in-one, and I found 280AH LIFEPO4s for relatively cheap ... built TWO 280AH 24V with quality bluetooth BMSs for a total of...

At a couple of camp sites I had to use a small 3 pin to 2 pin conversion plug - for whatever reason having the second ground pin popped the breaker.

yes I am but as mentioned it (the step down) may not have enough power to handle the inverter. Was thinking of buying a second one as I am adding a second 24v bank and having the two step downs feeding a 12volt busbar to remedy the situation.

agreed - thought about adding same one I have to my second battery bank and having them combine on 12v bus

FWIW I made a mistake - my Rv battery system is 24v and I have an all in one. The fridge is a dorm-type 120v minifridge and I picked up a small 500 watt pure sine inverter for when all I need is the fridge running....BUT....I purchased a 24v to 12v step down that cant handle 500w. When the...

They will all work together if same chemistry - they will all balance to lower AH max is all. I have a lab unit that is 2 72ah and 2 100 AH so the 12v pack has 72AH max and it works fine and balances correctly with a BMS.

SOLD - thanks everyone!

No interest in some extra batteries? All hold full charge.

Looks like CATL210AH but it isnt quite 100% sure LOL

Thanks Don!! I will try various combos

no way to look up these numbers?

Tried every angle and even my newer ipad. nojoy

It is silver so my phone cant seem to pick it up

Happy Holidays everyone! Google is letting me down. Batteries look like EVE280s and have the following on them: 0191H0253190 and 24Q02 Can anyone ID them? Many Thanks! Swampy

Support said to update Mgt software but no change. I have a second Mgt module so might swap that out next time I am doing battery maintenance. Is anyone using something other Watchpower to manage these things?

I have an assortment of batteries for sale - all holding full charge: I used the 50AH Pack to learn about LIFOPO4 DIY and to drive small inverter during hurricanes. Since then I have built two 280AH 24V packs for my RV and a 12v 180AH pack for my boat. These are left overs I would like to get...