Search  for anything...
power queen

Power Queen 12.8V 50Ah LiFePO4 Battery, 640Wh Backup Lithium Battery, Over 4000+ Rechargeable Cycles, Lightweight Replacement Battery for SLA, Widely Used in Wireless Lawn Mover, Electric Scooters

    • Based on 76 reviews
Condition: New
Checking for product changes
$169.99 Why this price?
Save $130.00 was $299.99

Buy Now, Pay Later

As low as $28.33 / mo
  • – 6-month term
  • – No impact on credit
  • – Instant approval decision
  • – Secure and straightforward checkout

Ready to go? Add this product to your cart and select a plan during checkout. Payment plans are offered through our trusted finance partners Klarna, PayTomorrow, Affirm, Afterpay, Apple Pay, and PayPal. No-credit-needed leasing options through Acima may also be available at checkout.

Learn more about financing & leasing here.

Selected Option

Free shipping on this product

Non-returnable due to Hazmat safety reasons

View our full returns policy here.

Availability: 17 left in stock
Fulfilled by Power Queen-US
Arrives Nov 28 – Dec 2
Order within 12 hours and 49 minutes
Available payment plans shown during checkout

Style: 12.8V 50Ah


Features

  • Power Queen Upgraded 12.8V 50Ah Pro LiFePO4 BatteryUltra portable and lightweight with size(LWH): 7.7 * 6.5 * 6.6 inches. Weight at only 11 LBS. The New 12.8V 50Ah Pro LFP battery has the handle as well for your convenience. The portable size fits in Group 24 /27/31 battery box perfectly. 5-year warranty from the date of purchase.
  • 1/3*Impeccably Lightweight & 100% Capacity UsageOur 50Ah lithium battery weighs only 11.57 lbs, which is only 1/3 of the weight of 50Ah lead-acid battery, easy to move and install. And our LiFePO4 battery can charge/discharge fully of the capacity, providing astronomical boosts in run-time compared to only 50~70% capacity usage in Lead Acid.
  • BUILT-IN 50A BMS & 2-Hour Fast ChargingOur 12.8V 50Ah Lithium battery build in 50A BMS, which can prevent the LifePO4 battery from the most common issue causing of battery failure, such as overcharge, over-discharge, over-current, overheating, short circuit. The BMS also support 0.5C (25A) charger that needs only 2 hours to charge 50Ah battery fully compared to Lead Acid needs 10~11 hours to fully charged which only support 1A~10A charger.
  • Extendable Storage & Widely UseThe 12.8V50Ah LiFePO4 battery can be connected in parallel & in series for larger capacity. Allow being extended up to 4 in series or 4 in parallel to get Max 200Ah capacity or Max 48V(51.2V) voltage. Widely used in most areas such as RV, Solar, Household Battery, Off-Grid and Electric Scooter, Electric Handicap and so on. Note: The battery cannot be used as a starting battery. If you are not sure that, please contact customer service for relevant information.
  • Longer Usage Life: 10-YearPower Queen LiFePO4 battery provides 4000+ cycles & a 10 years lifetime compared to 200 - 1000 cycles & a 3 years lifetime in typical Lead Acid batteries. Our lithium batteries can be fully charged without risk and maintain the capacity with low self-discharge rate, you can use the battery as you want even though put it aside for a long-time storage.

Brand: power queen


Size: 12.8V 50Ah


Product Dimensions: 6.5"D x 7.7"W x 6.6"H


Number Of Cells: 4


Resistance: 40 Megaohms


Terminal: M6


Manufacturer: Power Queen


Brand: ‎power queen


Vehicle Service Type: ‎Van, RV, Boat


Size: ‎12.8V 50Ah


Voltage: ‎12.8 Volts


Battery Cell Composition: ‎Lithium-Phosphate


Item Weight: ‎11.6 Pounds


Product Dimensions: ‎6.5"D x 7.7"W x 6.6"H


Number Of Cells: ‎4


Resistance: ‎40 Megaohms


Terminal: ‎M6


Manufacturer: ‎Power Queen


Model: ‎12V50Ah


Item Weight: ‎11.57 pounds


Country of Origin: ‎China


Item model number: ‎12.8V50Ah


Batteries: ‎1 Lithium Ion batteries required. (included)


Manufacturer Part Number: ‎PQ-12.8V50AH


Date First Available: August 3, 2021


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Nov 28 – Dec 2

This item is non-returnable:

Non-returnable due to Hazmat safety reasons

View our full returns policy here.

  • Klarna Financing
  • Affirm Pay in 4
  • Affirm Financing
  • Afterpay Financing
  • PayTomorrow Financing
  • Financing through Apple Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Similar Products

Top Amazon Reviews

    • Great batteries
These batteries are just what I was looking for. Great price, easy to charge and they stay charged. I'm using them on my bass boat to run my graphs and they are amazing. I would certainly recommend them!
Reviewed in the United States on March 28, 2024 by Kathy P
    • So far, very pleased
Review Image by T. D. Perry T. D. Perry
I ordered this to use with my astrophotography rig. So far the only thing I have ran with it is the mount as I have a 120v supply for the rest of the equipment and my recent capturing has been around power. The battery, when placed on to use with the EQ35-Pro mount sits around 13.7v when turned on. After over 8 hours of use on the mount, it has only dropped to 13.2v. The battery arrived very quickly and was WELL packaged, unlike another battery I had purchased and had to get a refund for as it was damaged by a small "crunch" apparently on a corner since it was not packed well. So far, I've been very pleased with it. It's MUCH lighter than the 36Ah AGM battery I was using. The real test will be when I have to use it to power the entire rig (EQ-35 Pro, ASI533mm Pro camera with filter wheel, ASI290mm guide camera, RPi running Stellarmate and an ASI EAF. The nice thing, I do have a generator that I take out in the field with me (Westinghouse iGen2500) when it's cooler out and I can set up my tent with a heater in it to monitor the captures. It remains to be seen how long this lasts, but so far, I do have to admit I have been impressed for the price. ... show more
Reviewed in the United States on October 10, 2022 by T. D. Perry T. D. Perry
    • Bullet Proof
Review Image by Gene Kind Gene Kind
Review Image by Gene Kind Gene Kind
Review Image by Gene Kind Gene Kind
Review Image by Gene Kind Gene Kind
Review Image by Gene Kind Gene Kind
It’s a well-known fact among Waterfowl Hunters, if you what to test the durability of something, take it duck hunting once. If you want to destroy it permanently take it twice. Your product survived two seasons and surpassed my expectations to say the least. In November of 2022, I purchased a Power Queen 50ah battery from Amazon. I bought it because it had generally positive reviews and it was within my modest budget at the time. When it arrived, I had no idea of the value of what I had just purchased. I specifically purchased the battery to power a trolling motor on a light kayak used for duck hunting. Please allow me to give you a brief rundown of what this battery has been subjected to: 1. This battery has been completely submerged in water for hours on end. 2. It has been well used for two entire ice-cold duck seasons in the backwaters of Michigan. 3. It has survived hundreds of miles of being bounced around in the back of a truck bed as we drove down poorly maintained dirt roads. 4. It powered a 50# thrust trolling motor as we explored miles of weed and grass choked pond and rivers. 5. It has recovered a boat that was sunken and completely submerged in 5ft of water. (Fun Fact: An electric winch will work under water when connected to your battery.) To top all of this off, on the last day of the season of 2023-2024, I was driving on my way home when a fellow driver caught my attention to let me know something was wrong with the boat I was pulling on a trailer. After I pulled over, I couldn’t immediately find anything wrong with the boat or trailer. Then I stepped around the passenger side and there it was. My 50ah battery had fallen out of the boat and was being dragged down the road by the cable connections. It looked bad to say the least. The electrical connections were destroyed and the few strands of wiring from the positive terminal were the only thing holding on to the battery. To say I was upset would be an understatement of a lifetime. There was nothing I could do except to collect my battery and finish my trip home. After I got home, I put everything away and made a plan to take the battery to the recycler. Last night, in my shop, I walked past the battery and gave it a good look. It was battered and covered in road rash but on closer observation it looked mostly intact. I decided to try to plug it in to the charger and see what happened. To my absolute surprise, it was still working! A quick check with multimeter confirmed it! It was still working just as well as it did the day I bought it. The case has been compromised and this particular battery will probably not be used on the water again but it will be replace with a Power Queen for sure. I’m impressed with the durability and construction of this battery. It has taken more abuse than it was made for and it just keeps working. ... show more
Reviewed in the United States on February 26, 2024 by Gene Kind Gene Kind
    • For my trolling motor on the beach
Review Image by AdamC AdamC
Review Image by AdamC AdamC
I decided on this one for my inflatable raft + trolling motor setup. The customer reviews were positive and I have been satisfied with the battery and the customer service messages since my purchase. My raft is down a long steep bank so I carry the battery up to the garage to store/charge with a 25l sized backpack. With the low weight, it’s been no problem. I have taken the raft and motor into the sea for 45min-1hr rides and we have not tested how long it lasts by allowing it to lose power, but it feels about what’s expected for how much was left based on the trip when I can see capacity state on the battery charger. I have tried a few battery meters and the first was not working (always at 100%… ), the second one is tracking capacity but I don’t trust it quite yet because it drops rapidly from 100% to 78% in the first 5 minutes and then stays at 60-70% for the majority of the trip. That part is not the battery’s issue but I haven’t found a great way to feel confident of what’s left in power. It’s a great battery for my use, nice customer service so far. Lightweight, was competitive in price. You will need a charger that is liFePo4 (lithium iron) compatible. I had one. You might need different terminal connectors, the supplied ones are minimal and difficult to attach alligator clips to. You will need some patience in shipping, it takes a few days. ... show more
Reviewed in the United States on August 14, 2022 by AdamC AdamC
    • Great price
Battery arrived quickly. I installed it on my enclosed trailer with 200W solar panels. Charged up immediately. I use it for keeping a small refrigerator running when not on shore power. Seems to be working great. Couldn’t be happier with performance and price. Update Jan 2024. This battery has been great!!! I have a 400watt solar panel setup on my enclosed trailer. I run a Whinter refrigerator/ freezer off this 50ah battery and it has out performed my expectations. Great battery!!! ... show more
Reviewed in the United States on April 10, 2022 by Ed P
    • Great Batteries and Customer Service
Bought a battery last year and it stopped working after a few months. Decided to order another and it stopped working two weeks after the return cut off. Heard good things about the battery and was highly recommended so I reached out to customer support. They were able to help me troubleshoot and brought both my batteries back to life. Really appreciate the help and prompt responses from them. Definitely recommend these batteries 👍🏾 ... show more
Reviewed in the United States on November 28, 2023 by Vinnie

Can't find a product?

Find it on Amazon first, then paste the link below.