Power Queen 3 Pack 12.8V 100Ah LiFePO4 Battery, Built-in 100A BMS, Lithium Battery 1280Wh, Up to 15000+ Cycles, Support in Series/Parallel, widely used for Solar Home System, RV, Off-grid Life

I just installed them in my RV., which was a breeze, as opposed to the removal of the very heavy AGM batteries these Power Queen LiFePo batteries were replacing.However, I am unable access the BMS through bluetooth via the Power Queen app. And, there were no instructions in the user guide. A representative from Power Queen sent a post-delivery email, with a link to some FAQs, which did contain a procedure to access the BMS. But, still, no luck after following that procedure. I will have to resort to some alternative monitoring method or tool.The batteries do appear to be operating normally from I have observed, so far. Will test them out this weekend.UPDATE: After further research/reading, I probably purchased the non-bluetooth batteries (which explains the price difference vs a bluetooth model. And, probably something I missed reading through the product description). Bluetooth battery monitor w/shunt needed at this point, so, looking into those, now.Will update again, when I can better monitor battery performance.UPDATE 2: Rating upgraded , since my batteries did not come with bluetooth. Batteries holding up, so far, in the short time that I’ve been running them. Will be installing bluetooth monitor to get more specific performance and status data. Thanks Power Queen for the support!!

I purchased these batteries and then 1 day they were completely dead. I message the manufacturer and they sold me a charger.They were willing 2 refund my money for the charger. But it worked really good charge the batteries up.I was really impressed with that. Their customer service is outstanding and I would purchase batteries from them again and again.

Worked excellent running in series (24v) they ran my 70lb motorguide trolling motor for 2 days without charging. It was a windy day on lake okeechobee as well.

I didn't want to give less stars for my mistake. These batteries are great. I started with 2 used Power Queen batteries from a friend. I purchased these to add a new solar array on a van. Be sure you read the description and know what you want. If you want a battery with Bluetooth, make sure you order one with Bluetooth. I was excited to be able to get new equipment I never checked. Not a deal-breaker by any means. You would just have to add a monitor. Safe and light weight and much more resilient than lead acid batteries. Now shop wisely because there are cheaper batteries out there, and the BMS in those batteries are cheap and if you make a mistake you will render the battery unless. Power Queen will contact you and support you whenever you need them. They stand behind their products. Battery group size are the same size as lead acid batteries so be mindful of your space. Follow all directions before you do anything after receiving them and before adding to your system.

Works great with my Garmin kraken and lasts all day

He's happy, has a total of 6 to play with.

I've purchased a total of 17 batteries of this model. All are in perfect condition and perform as specified by the manufacturer in terms of capacity. The finish and build quality are excellent. I'm very happy with this product.

I purchased 2 of these used back in Dec. Kept it charged on my power queen 20 amp charger, an figured I better test it on my domestic refer. I don't use it to start from warm or completely off, as even my lead acid battery 24 group. So the refer. Was set to 32° then switched over to battery power tested again as the temp lowered in the refer. But yeah ok didn't hold up long at all I mean not even 1 run time let alone the @2 hrs I need it to when camping, figured I better test this as my annual time away is coming up in July good thing I tested it otherwise I would be stuck in the mtns. With no refer. An spoiled food wonderful, do if you have one or think about buying this one buyers beware it didn't wk for me, for the price I'm going back to a lead acid 27 group 100 amp hr. Battery an I know they wk great for at least 3yrs an keep on trickle charger all yr long even in the winter so when I pull out in June or July I won't be stuck, remember test yours 1st or be stuck w/no food horrible