12V 9Ah Lithium LiFePO4 Battery, 5000 Deep Cycle Rechargeable 12 Volt 9.0 amp Replacement for Alarm System, UPS, 1290 6fm9 SLA Battery, Gate Opener, Solar, Ride on Toys, 15A BMS, F1 & F2 Terminals

Bought this for use with my deer feeder as the regular batteries do not last very long and do not throw the corn very well. Installed and tested it and the difference was amazing.You want this one as it has an overcharge protection feature and work with standard deer feder solar panels. Will be replacing the other ones when the batteries die.

Warning this battery is not for Generators. Hooked mine up to my generator, it just clicked and did nothing, battery had a full charge. DO NOT BUY FOR GENERATORS!!

Decided to take a gamble and buy this to replace the dead lead acid battery in our UPS. This battery is a lot lighter and has a lot more capacity than the old lead acid one.The UPS continues to run well and works thru any power blips that we have had and no errors with the unit at all. I definitely recommend this as an UPS replacement battery.

We have tested 10 units as part of a plan to replace our UPS batteries with these. On the small units, they do great, on our large ones, the BMS trips and it has to be reset by applying 12v to the external terminals. We did load testing, they pulled 8.5 ah, not 9, and that was at a gentle 2 amp discharge. The internal BMS will disconnect at sustained discharge over 12 amps. That stinks when they are inside of a UPS and have to be pulled out to reconnect. We are starting to replace our lead acid batteries in alarm panels, access control, and small UPS's units with these. We will have to wait for improvements before using these on the 2000va and larger units.

Update- capacity of the battery started fading after 6 months, and is now completely dead after 1 year. Within 6 months, battery life had faded from easily a full day to only a couple hours. Now, battery life is about 10 minutes at low volume and it dies immediately if turned up. The speaker indicates it never goes above 1 bar charge.The original cheapo lead acid lasted over 2 years, this supposed improvement only made it 1. Don't bother. Original review below.Have a Ecoxgear Boulder+ speaker that's a couple years old and the original sealed lead-acud battery life had faded to only a couple hours at low volume. Figured might as well upgrade to a lithium pack, this physically was a perfect fit, however it arrived completely dead out of the box. Only 0.2v measured across the terminals. It's common on 12v replacement packs like this the BMS will go "dormant" if u used for a long period of time, or the battery is run too low, preventing over-discharge. Generally, applying a charger will boost the voltage and "wake up" the battery. However the built in charger of the Ecoxgear speaker was only supplying about 13.8, which apparently wasn't enough to "wake it up".on the pack it says charge voltage 14.8, which is higher than most appliances designed for SLA batteries will provide.The shade tree trick is to just jump it to an 18v power tool battery for a couple seconds. This did the trick, and woke up the battery, now showing only 9.5 across it, but it started accepting charge from the speaker. After about 8 hours it was showing fully charged and 13.8v across the terminals. So far so good, speaker works fine and was on for several hours at fairly high volume and didn't even lose one bar of the battery gauge, where with the old battery it would have been dead within an hour.The other quirk of lithium replacements is the battery meters is generally calibrated for approximate charge % based on the voltage curve of the original lead acid, while these lithium packs have a more or less regulated output voltage for the majority of the capacity, only dropping off as they're nearly empty, so the appliance may show 100% charge for like 90% of the capacity, then rapidly ticking toward empty right at the end.While somewhat troubling the battery was essentially DOA, with zero instructions or anything that it may be "dormant", LiFePo batteries are generally very tolerant of deep discharge, moreso than li-ion. If you have a battery charger specifically compatible with automotive 12v lithium batteries, they generally have a "boost" button or will automatically apply a high voltage even if none is sensed, but chargers intended for lead-acids usually won't supply charge unless some voltage is seen, or may not supply high enough voltage to "wake up" the pack.

I purchased this to replace a battery in a portable speaker that came with a sealed lead acid battery. Weighs 1/4 of what the old one did! I used to get about 15 hours of use on the old one at 3/4 volume and I’ve been running this one on the first charge for about 20 hours so far and have not lost one single bar of charge! Very impressed for the price

Put these batteries on my gate opener and deer feeder. Have been running strong for a year now. Would purchase again. You do have to charge them before you use. They are super light weight compared to traditional batteries.

Light as a feather. I couldn't believe it.I have this monster flashlight that uses these batteries. I figured for a few extra bucks, why not try this lithium battery.Wow, what a difference. Very powerful and incredibly light. I would give it 10 stars !