power Queen 12V 100Ah LiFePO4 Battery BCI Group 31 Lithium Battery, Deep Cycle Battery with 100A BMS, 1280Wh Energy, Up to 15000 Cycles & 10-Year Lifespan for Trailer RV, Motor Home, Marine

Wish I had found the light weight battery sooner. So far, no problems and it holds a good charge all day.

I’ve had so many issues with batteries in my boat, when the latest set died (2 years) I decided to try lithium. These were no more expensive than the lead acids I’ve been buying so if I even get half the quoted life (5 years) out of these it’s a deal.So yes I’ve only had them about a month but I’ve got some good testing in, multiple 12 hour fishing days (bass fishing), lowest I’ve got these batts is 68% capacity and no performance decrease by the end of the day. They seriously kick ass. But what’s really got me sold is the monitoring. Im so sick of feeling in the dark when “I swear they shouldn’t be this weak already” on the water and basically any other issue u can imagine.It already saved me once, finished fishing for the day and plugged the boat in at home, the charger showed one charging and one on fully charged, so I checked the battery app, one was at 89% and charging, the other was at 65% on STANDBY! Turned out my brand new noco pro 2 bank charger I bought at the same time as these batts was junk! Without the power queen monitor who knows when I would’ve figured that out since the batts will still read 13v even at a low charge. Anyway maybe they’ll crap out next year and I’ll update but if I’m very happy with them so far.

You might pay a tad more for PQ but I am here to tell you it is well worth it. This battery is well made as there are many Youtube tear down videos to prove it. I have a few of mine now going on 3 years and still perform flawlessly. TY PQ.

I like this battery allot. I bought a 100ah class 31. I used only my trolling motor. To go up and back 3 times on a lake this fall. Each trip was roughly 2 miles. I'm sure i could have made 3 more. I'm an amazed at the power this battery has. Not to mention how light it is. I have arthritis in my shoulders. I can pick this battery up without an issue. In messaging with Power Queen shortly after buying this class 31. I was astonished when the rep said that the Class 24 100ah battery will last as long as a Class 31 100ah battery. That really doesn't compute to me. The Class 31 is what nearly 4 inches longer then a Class 24. Idk i guess it's like what weighs more, a ton of bricks or a ton of feathers? I don't know, b4 I buy my next battery. I will need to verify that statement. Either way I'm sold on Lifepo4 by Power Queen. My only concern is the bolts 6mm bolt with 13mm head. I hook up 3 or 4 wire lugs. I haven't cross threaded it yet. It does feel like it wouldn't be hard to do. I might look into an "Adapter kit" one that i can bolt down on the positive and negative with a more durable connection on the other end. Something exactly like on a SLA battery only different.

I’ve had mine for 2 years now and they are still going strong. Use them on my trolling motor and I have not run them down yet even with 2 full days of constant trolling motor use. I would definitely buy again.

This has been connected to the Backup Sump Pump in our basement as a replacement of the dead 12v 190ah Lead Acid battery that was there. Since receiving it, I fully charged it with a Lithium Charger and then connected it to the Backup System that is designed to charge Lead Acid. It has been floating at 99% for months now and is tested once a week to make sure it is in good running order. After about two months it hasn't even had a single full cycle. So I expect this battery to last a very long time with it's new purpose.

Came later than the latest arrival date. Directly out of the box its’s dead and won’t take a charge. Of course there’s no domestic number to call to all customer service has to be done by email. Even when opening a chat on their website their response says with 24 hours. This might as well be a scam. Very unhappy.

Review for the 12.8V 100AH Group 24. I bought one of these last year for my trailer and had no issues at all. Charges up to 14.1V and was reliable all summer when off shore. Service is great, they reach out immediately after battery was delivered and are very responsive when contacting them with questions. Just ordered my second battery and will install them in parallel on my trailer for extended boondocking. So far so good, no complaints.