Power Queen LiFePO4 Battery 12V 100Ah, Bluetooth 12Volt RV Lithium Battery with Low-Temp Protection, Group 24 Deep Cycle Battery, Up to 15000 Cycles for Motorhome, Trailer, Camper Van, Marine, Solar

I ordered two batteries and they arrived earlier than anticipated. Out of the box, the starting voltage was about 3.2 volts per battery. Initially I had an issue getting my charger to recognize the batteries and begin charging despite the charger supposedly having a minimal starting voltage of 2v. I had to hook up a solar panel to bring the voltage up a bit and the charger worked no problem. You may have to use a manual charger for a bit if you don’t have a solar panel. I purchased these batteries to run a 24v Clarke auto scrubber. I picked this battery in particular because of the 500amp max starting voltage. Once I wired the batteries up in series to get up to 24 volts per battery I used my scrubber to clean 10,000sqft and it was a flawless experience. The batteries performed perfectly and were actually a bit smaller than the four 6v lead acid batteries they replaced and weighed a fraction of them too. Another bonus was that the voltage remained constant (above 13v per battery) and did not fade in power output like traditional led acid batteries tend to do. By the end of the cleaning, battery temp was relatively cool, around 82 degrees Fahrenheit. Another great feature is the Bluetooth capability. It allows you to monitor each battery in real time for pretty much every thing you need to know while under load: voltage, amperage, watts, temperature, remaining amp hours and estimated time remaining. It does the opposite when charging and gives you an estimated time to when the batteries will be charged - fantastic. Another perk is never having to worry about adding water ever again. In fact, you don’t have any of the concerns with these Power Queen batteries that you do with lead acid batteries since they are lithium iron phosphate. My last point comes to the value you get for your money: these cost less than buying four 6v lead acid batteries and will last thousands of cycles(supposedly 6,000) vs lead acid’s hundreds. You will occasionally need to charge each battery individually to make sure they are both equalized. Even if these batteries only last me 4 years, it’s still a win in my opinion. They cost less, there’s less maintenance, more performance, no acid leaking and are very easy to maneuver in the event I need to use them with an inverter.

Neither BMS or Bluetooth worked out of the box when connected to LiFePO4 charger. Battery would not charge. Found a solar panel and controller to borrow and connected to battery. That woke it up and I disconnected and reconnected to the charger. During the night it charged to 76% when Bluetooth apparently quit or lost connection as it turns out the battery was fully charged. In the morning Bluetooth would not connect. Whatever hiccup the battery had out of the box, it and the Bluetooth app are now functioning perfectly and consistently. The Bluetooth app connects every time whether the battery is charging, discharging, or in standby. It is the “house” battery for my truck bed with canopy and is charged now via a dc-dc isolated charger or a solar panel. I would buy it again, especially at the new lower price.

UPDATE The BT app is absolutely GARBAGE. It is seriously broken, unable to connect to more than 1 battery at a time. DO NOT BUY THIS BT VERSION. My only real complaint, is that the BMS has a 100a limit, meaning only 1300watts max each battery. The app is kinda meh, but it works, awkward using the APP for more than 1 battery, and their MPPT uses a separate app, which is kind of a let down. Aside from that, they seem to hold a charge well. If they improve their Android app, i will likely buy more of them.

Decided to start upgrading batteries this year. Started with my 12’ aluminum boat battery. Decided to go with this brand after much research. Wife and I planned on going fishing. Found out our son obliterated the pull start on the Johnson 8hp outboard. Had everything ready and decided to still take the boat out, but use the trolling motor only. This battery is super legit. I plan on buying the charger for it eventually, and maybe upgrading the battery in the travel trailer. Currently using som harbor freight panels, Amazon charge controller, and homemade leads to charge. Takes about 1.5-2 days with a 200 watt panel from Harbor Freight. We do a lot of camping/fishing, so another review to come. Trolling with a Minnekota 30lb thrust 12v trolling motor we trolled/full throttle for 7 hours. I packed extra batteries, but they were not needed at all. Pleased with my purchase, and cannot wait to try the rapid charger and a larger battery size option for my travel trailer house battery.

I would have gave you more stars, But the application Power Queen will not register, On Iphone or Android it would not allow me to register, It was grey out even after adding the numbers from the email.

Great battery for the money! I run 2-10” a 9” and a 12” garmin graphs with livescope. I can get multiple days off this battery. My only complaint is the Bluetooth feature is a little finicky, trying to connect to my phone. Other than that highly recommended it for the price point.

Amazing product that is lighter than a deep cycle battery. Battery lasts three full days on a minkota max trolling motor. Blue tooth is a plus.

Nice power, bluetooth is great!