SEFEPODER 12V 20Ah Lithium LiFePO4 Deep Cycle Battery, 4000 Cycles Rechargeable Battery for Electric Scooter, Ride On Toy, Lighting, Power Wheel, Fish Finder and More with Built-in 40A BMS

I have been running these in my home made battery box for a few months now and have been thoroughly impressed with their performance. You can tell from the clean construction that these were high-quality batteries. Performance & Capacity After running a capacity test at home, I confirmed that these batteries deliver their full-rated capacity. They performed exactly as expected, maintaining a stable voltage throughout the discharge cycle. Build Quality & Design The construction of these batteries is top-notch—solid and durable. One of the standout features is their compact size, which is notably smaller compared to similar products in the same category. I find this to be a huge advantage in my limited space application. Additionally, these batteries are lightweight, which helped reduce the overall weight of my homemade battery box. The weight savings alone made these an excellent alternative to my old sealed-lead-acid (SLA) batteries, which were significantly heavier and bulkier with far less capacity. I was able to increase my battery life 5-fold with this switch. Ease of Use & Instructions The included instructions were basic but relatively easy to understand. While they provided the necessary information for general use, those unfamiliar with LiFePO4 batteries may need to do a little extra research to know what the specification tables mean (such as what the charge [C] rating of your charger should be). However, for anyone with experience using these types of batteries, setup should be straightforward. Shipping & Initial Charge The batteries arrived quickly and were delivered in perfect condition. They came with an approximate 30% State of Charge (SOC). Charging them up to full was quick and hassle-free. Final Thoughts Extremely satisfied with my purchase. Overall, these SEFEPODER LiFePO4 batteries offer great quality, reliable performance, and an excellent weight-to-capacity ratio. Given their compact design, lightweight construction, and full-capacity performance, I wouldn’t hesitate to buy them again. But with 4000+ rated cycles, why would I? LOL ⭐ Highly recommended for anyone looking for reliable and efficient lithium batteries!

So far so good, much lighter than the other batteries I was using. They charge fine with the old charger, seems to take a little long. But they last longer and are much more powerful. Well worth the extra cost for me.

size was perfect, seems like good quality, great value, easy to install, just change the charger, and you're ready to go. I got these to replace OEM Lead acid batteries. Charging capacity is excellent. Added about and extra day to the length of my use.

Much lighter than my old battery that was Li-ion. This LiFePO4 battery is a significant improvement. I put 2 into my Metro Mobility M1 motorized wheelchair, and it works well, the capacity is larger than OEM, and took longer to charge? About 8 hrs, but looks like there is a corresponding increase in distance. Good value and option. I had to use small screws for terminal connections. It doesn’t have a screw hole like the OEM

Battery was used in a solar water fountain. By the time I was able to trouble shoot the problem, I was a few days past the one year warranty. I think they design in what is called "functional obsolescence". In other words, it becomes obsolete after warranty expires. Obsolete functionally because it is unable to hold a charge. So you need to replace battery. They keep you buying batteries every year instead of making them to last. There is a lot of electronics besides just Lithium cells inside. Great battery if only it didn't fail a couple days after warranty

Charges quickly and lasts a lot longer than the acid batteries did

Connecterd the 2 for 12 volt use (ie: Red to red). Arrived charged, but put it on trickle anyway to top off. Checked before use, 13.45 volts. Used for my electric 30 lb thrust boat motor. Rode around the bay picking up my lobster traps (6) with both wind and some current from incoming tide. Several trips to shore and back out for traps. Checked voltage after returning home. Registered 13.23 , so only ".23" used ! I was expecting "much more drain of batteries. Could likely use one, but love the extra just in case day runs long. These offer 5 amps each. I want to run a 10 amp wench to pull wheel chair up into home on ramp, and to lower elderly down the 7' ramp. I'm ordering another set now. Very pleased. Lithium LiFePO is the cadilac of batteries, comes completely sealed so no caps and spills, and these are very light weight as all LiFePo. Note: This type battery requires LifePo charger. These arer cheap and small. I purchased a 4 amp charger.

so far its holding life. the only down fall is that it take FOREVER to charge up. overall its legit. Going into my 2nd year for ice fishing.