Power Queen 2PACK 12V 100Ah Group 24 LiFePO4 Battery, 1280Wh Lithium Battery with 100A BMS,Grade A Battery Cell, Perfect for Trailer RV, Marine, Solar Power System

We were having an issue with our lead acid batteries keeping up with our weekend camping. We have two solar panels but they couldn’t keep up on a cloudy weekend. Anyway we have a modern 12 volt fridge that works great. When we switched to the power queen we have had no problem making it several days without issues. So far the batteries haven’t fell below 13.4 volts even on a long weekend. Would definitely recommend this product. And they are waaaaaay lighter than the lead batteries.

This is the best storage battery for off grid folks like myself. I bought my first batteries from Power Queen in Sept 2022. TWO Power Queen 12V 200Ah PLUS that I use for my main 24v solar system. Working superbly for a year and a half now, with ZERO problems from day one. I had my neighbor order these along with the rest of the equipment and one PQ 30amp charge controller to make him a 24v off grid solar system also. We had an initial problem with ONE battery being defective but Power Queen responded quickly and sent a return box and label to send it back and shipped another battery out to me. I charged/balanced the batteries and set the system up and the friend is HIGHLY pleased with it. He had to replace 6 100ah deep cycle batteries this year after 3 years of use, heard me rave about going LiFePO and asked me to set it up and we ordered from PQ because I KNOW they are trustworthy and have a HIGH quality product.

I had never heard of this brand and was skeptical at first but the price was in my budget for what I was wanting to do. I’ve had the power queen batteries for over a year now and I have no complaints but I did run one down because I had forgotten to power off everything. It wouldn’t take a charge through my charging system. After contacting power queen they suggested that it it was asleep and try using a 20 amp charger. Like a pro that was it no more issues and I’m loving them.

This review is for a 3 pack of 12.8V 100Ah Trolling motor LiFePO4 battery with low temp cutoff.I was highly skeptical about the capacity of these batteries, since they looked too good to be true. It seems like more and more manufacturers are making up fake marketing info that never actually comes true, especially for lithium batter products. So, I was doubtful going into this.I bought these after reading a bunch of reviews and seeing others have good luck, so I figured I'd give it a try. Amazon has pretty good buyer protection, so I figured it was worth the risk.I also got a Noco genius gen5x3 charger (in lithium mode) to charge these up with, and it took nearly a full day to reach a full charge. I left the charger connected for 1 more day, and connected the batteries together in parallel for a full day before testing, to give them a chance to balance and equalize. When they arrived, they were all at 13.1 volts. During the charge, they slowly went up to 14.4 volts, then the charger showed full charge and slowly pulsed green. The next day, the batteries were at 12.9 volts, and I was very worried that they were all defective. This is very unexpected behavior, I thought.I went ahead and connected them all together in series, used a 100Amp breaker, and connected to my 1000 Watt pure sine wave inverter. When I turned the inverter on, the battery voltages jumped up to 13.2 volts immediately, and maintained that voltage for about 2 hours under a 850-900 watt space heater load. Toward the end of the test, the battery voltages started slowly going down, and eventually reached the 11.8 volt mark when one of the batteries suddenly dropped to 0 volts and the inverter powered off.The last kill-a-watt reading I saw as 3.3 kWh capacity at 890 watts. The test was nearly 3 hours 45 minutes of runtime.I hooked up the charger again (leaving the batteries in series because the charger says it's ok to do that), and two of the batteries started charging immediately, but one was showing 2 volts. That's the undervolt protection BMS on the battery kicking in, as expected. I pressed the recovery button on the charger, and it started putting in 5 amps for a few minutes on that battery (confirmed with a dc clamp meter). After a few minutes, the battery voltage jumped up to 11.9 volts, and I let the charger to run overnight in Li mode to recharge them all.This afternoon (the next day), the batteries are all at 13.55 volts and still charging, it's been 18 hours so far on the 5 amp (per battery) charger, and they should be still charging for a few more hours before they hit full. I have programmable load testers that I use on lead acid batteries to test them that I'll hook up tomorrow after the batteries have been on a charger for at least 36 hours. This will let me accurately measure the actual capacity in amp hours of each battery, but based on this quick and dirty inverter runtime test, I'd say they are very close to their marketed performance, and I'm quite impressed. The inverter claims to be 88% efficient (which is dubious), but if true, that would mean these batteries are actually producing 1250 watt hours of power, when they are rated for 1280. That's excellent performance, and I expect the inverter is actually worse than it claims, which would mean the batteries are likely over-delivering on their performance claims.Well done, Power Queen, an I will be buying more from you when I need to expand my storage.Update: I tested these with a battery capacity tester after fully testing and letting them rest for a day. Testing parameters: 6 Amps constant current with a low voltage cut off of 11.5 Volts. (Note, this is not a 100% discharge until BMS cuts out test).Battery 1: 100.5 Ah, 1299 Watt hoursBattery 2: 101.3 Ah, 1325 Watt hoursBattery 3: 100.6 Ah, 1314 Watt hours.These results are excellent, and exactly what the they are marketed as. I'm extremely satisfied with these batteries.

Got these wired in series for a 70lb thrust trolling motor. So far they have performed great, plenty of reserve and doesn't take long to recharge, plus they are very light.

I like the low weight (25#) of these 100Ah batteries. They come complete with the standard M8 bolts, washers, and color-coded bolt covers for protection from the environment. I'm using 4 wired in parallel with the solar power system for my garage, where they will keep a small freezer and refrigerator running in case of an extended power outage. Power Queen has a solid reputation for quality and dependability.

They work great so far. I ran them in parallel on my boat for my trolling motor and other marine electronics. I’ve spent several hours on the water and returned with nearly a full charge. They are significantly lighter than my regular lead acid batteries so I was able to shave off a significant amount of weight off of my boat.

Easy to install, working just fine. Will know more when the boondocking begins!Size is perfect, 1/2 the weight of the lead acid batteries.