12V 9Ah Lithium LiFePO4 Deep Cycle Battery, 3000+ Cycle Rechargeable Lithium Iron Phosphate Battery for Solar, Fish Finder, Lighting, Off-Grid Applications with 10A BMS

Purchased to use as a trolling motor battery, but ended up using during a power outage and it worked great. Connected a 300 Watt inverter and was able to run our TV, soundbar, and DVD player for a couple of hours with no signs of running out of charge! Recharges just fine using a standard automotive 12V trickle charger. No need to buy a special LiFePO4 charger.

I used 16 awg connectors and my 30 lb thrust trolling motor melted and connectors, shorted out the battery, and my battery now says zero charge. Charger won't charge as I can't jump start dead battery. My fault. USE 10 awg 12 volt wire and connectors on 30lb trolling motor.

Very light weight using on Garmin Livescope.

Just a warning. The 30Ah batteries that I bought (and it looks like the 20Ah ones are the same height in the description) batteries are just SLIGHTLY taller than a 12v 17Ah SLA battery. The description shows that now, but I'm 90% sure I checked before I ordered them and it showed the same exact size size as a 12v 17Ah SLA battery. I could have just looked at too many batteries and made that mistake on my own so I'm not saying the description was changed, but I want to point it out for anyone reading this and thinking of buying these. It's not an issue if you're aware of it and plan for it. If you put two of these into an old APC SU1400 UPS, you're going to have to bend the tabs inside the UPS. I have them in there right now. I have no idea if I can ever get these batteries back out. Also note that if you decide to try these in an old APC UPS, the battery terminals are different (obviously) and the fuse that came with the UPS won't fit standing up. It hits the circuit board in the back. Also, if you buy automotive "bolt-on" fuses that LOOK like they'll fit, they are too short as the fuse is 1.61" in overall length, not between the center of the holes. That's exactly what all the descriptions for the fuses show, I was just "hoping" it'd fit. I just "trimmed" the fuse with wire cutters, but that's a hack and would most likely overhead if used anywhere near the fuse rating. I bought an 80A fuse instead of the 100A that came with the UPS, , due to the battery rating,but I bet the batteries would shut down before that was needed (I hope).With full load on my UPS and reading the current between the batteries (where the fuse would go) I read just over 8 amps, so I don't expect to draw too much current for these batteries. I have no idea if the UPS will draw the batteries down too far to not come back up without applying outside voltage to them, but I'm hoping the UPS will shut down and stop drawing anything from them before that happens. We'll see.Note that the batteries say 40A continuous draw and 80A for 3 seconds, but the "user manual" that came with them says 30A continuous draw with 60A for 3 seconds. I have no idea which is correct and I didn't test it. It doesn't matter for my application, but just something to be aware of.Oh, also note that MANY people online say not to put LFP batteries in a UPS looking for SLA batteries, so do that at your own risk.These will never be 100% charged by the UPS and that's fine with me. I'm planning on longer run time (I haven't test it yet to see how long I get) and the most important thing is not to have to replace the batteries every 2-5 years. SLAs always seem to die when you need them and I have hope these LFPs won't. Even if they do die in a few years, they were only about $20 more than a replacement set of SLAs for me.

IM SHOCKED!I paired 2 of these together for a mobility scooter that we use to haul stuff in a junkyard. It definitely goes twice the distance from the lead acid batteries. No complaints yet.

I bought the 20ah and a 30ah. I'm using them to run my Garmin Livescope system which I'm viewing on a Garmin 1022. Total draw is estimated at 3.6 amps.I wanted the 30ah for my primary and the 20 for a backup in case the 30 ran down before I was finished.So here's the rub. So far, I've only had one trip (the first trip out) that the 30ah worked right. Every trip ever since that one, it has dropped below 12v within 30 minutes of using it and I've had to switch to the 20ah (which has worked flawlessly).I really wish that I had waited to buy these batteries until the weather would allow me to go more. If I had, I would've returned the 30ah battery after the 2nd trip.I just went fishing again yesterday. Both batteries were 100% charged when I left for the lake. As soon as I hooked up the 30ah to my electronics, it was only reading 12.1 volts. Within 15 minutes, my alarm was going off on the graph saying low voltage. It was already down to 11.8 volts. 5 minutes later the graph was preparing to shut down and I had to swap out for the 20ah battery.Fortunately, the 20ah battery ran my fish finder for the rest of the day with no issues, maintaining 12.5 volts the whole time.I bought this in January, so it's too late to return it now, so I guess I'll have to trash it and buy another one. I will not be buying this brand again. At least it wasn't as expensive as others I've seen, but I still feel like I was ripped off. Had it worked as well as the 20ah has (so far), I would've felt like I got a great deal.Buyer beware.Update 6/7/2024Now I've used this battery several times and I've tried everything to try and make it work right. Someone posted that I needed to drain it all the way down and then recharge it. I hooked up a small 12v fishing light to it, but it cut the power off to the light as soon as it got into the high 11v range. I can charge it up to the point of reaching around 12.5v, but that seems to be the limit. As soon as you remove the charger, the voltage starts to drop on its own.I took it fishing one last time last weekend and this time it only ran the fish finder about 5 minutes before my low voltage alarm started going off on the fish finder. Within 10 minutes, the fish finder turned off and I had to switch to the 20ah battery....which, to it's credit, has worked flawlessly up to this point.Maybe I just got a bad battery. I don't know. Again, I really wish that I'd have used it sooner so could have returned it. At least that way I'd know if this is the norm from this company and the 20ah is the exception, or vice-versa.