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

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.

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.

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.

Update: Went out on the Waccasassa River yesterday and completed a full day of fishing and travel totalling 14 miles--10 miles of river travel and 4 miles of maneuvering and exploring small offshoot creeks. There was a medium tide all day working against me both ways and I was able to get 4.3 mph on full speed 5/5, 3.1 mph on cruise speed 3/5. Most of the time I used speeds 2-4 with speed 3 being the primary speed. On the way back home upriver I used speeds 4 and 5 because of the head current. I switched batteries at 9 miles. The first battery began to weaken a small bit around 8.5 miles but showed 12.8v still.I was able to run on full speed for about .5 miles at a time before the battery would reset, and then turn back on almost instantly. I shifted to speed 4 for a few minutes, then back to speed 5 for another .5 miles until the battery reset again. When I reached the launch at the end of the day battery 2 had 13.1 volts left and was able to operate with full power still.My two previous brand new 67 pound 120ah size 31 lead acid batteries would be totally depleted or dead if I had taken such a trip before, limiting my ability to cover lots of water.I ended up buying the Power Queen 10a charger because the small Noco 2a one was too slow to charge them. It charges them in about 6 hours from 12.8v to full.I will update after several more trips.Original Review:My first Lithium Batteries ever, and first impression was theyre so light and seem very well made.I had two 120ah 31 size batteries for my canoe that weigh 124 pounds, and these cant be but about 20lbs per battery.My back isnt what it used to be so even if performance is similar, the weight savings easily makes up for the investment.Lifting them was such a surprise...effortlessly in and out of the car and canoe.Ill be going fishing this weekend and will be doing a video on how they work and how long they last using my 55lb Newport Vessels motor and various accessories...Helix 5 FF, Livewell pump, full nav lights and led lightbar.Ill also update this review over a period of six months to help guide folks along if its for them or not.Also, in my canoe they mount on a slight angle which is not so great for lead acid batteries, but no problem at all for these which can be mounted practically any way you want.I also added a Noco 2 amp onboard charger and will update on how well and how fast it charges them after a day on the water.

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

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 will never purchase anything from this company again. I bought this lithium battery for my boat and the first time I used it the battery overheated and burned the negative connection wire and the side of the battery. I contacted the company and all they did was question my connections rather than take responsibility for their product. My connections are fine and never gave me any problems with my old lead deep cycle battery, the only reason I bought the lithium battery was because of the weight difference being much lighter and with severe spinal arthritis it's much easier on my body to use the lighter battery. My boat has an electric panel that has a marine grade breaker switch and a fuse panel for the smaller things, such as the lights (which I never use but are on the boat in case I need them) and my fish finder. I don't know why this company thinks their battery is flawless when obviously it's not the connections on my boat but rather the overheating of their battery when I use the 5th speed on my 62lb thrust trolling motor, it seems to run fine as long as I don't want to be able to use the top speed to move on to a different area of the lake.Definitely won't buy from them again or recommend their products.

Works well. Easy operation. So far, So good.