2 Pack Portable 12V 20AH LiFePO4 Battery, Lithium Deep Cycle Rechargeable Battery, Built-in BMS, 4000+ Cycles,Perfect for Outdoor Camping Fishing Marine Trolling Motor Fishfinder RV

Works really well. Used it with my FT 991A on SSB and FT8. I used it for 6 hours, constantly transmitting at high power and still had ~25% charge left after using. Works with a bunch of different connectors and easy to carry. Great value when it goes on sale. Feels more protected than EcoWorthy's other 20Ah battery.

Excellent 20 ah battery. So much so, I bought this(the second) unit

Price is great and long lasting power for my ft891 ham radio

I have 2 of these for an inflatable fishing boat that I can mount a small motor on the back. I get a solid 3-4 hours of none stop power and once the first one runs out, I switch to the second to head back. I charge them with some small solar panels, which does take several hours but so far the system works great!

Nice little battery. I’ve attached a solar charge controller with 2 usb ports to it and two cigarette lighter style power points. I also run a 1000 watt pure sine inverter off of it for short periods of time for AC power tools. It’s perfect for powering my Engle freezer. The only issue I have found is that it maxes out its resting charge at 13.3volts rather than 13.6 like my other lifepo4 batteries from the same manufacturer. I’m am using the ecoworthy Lifepo4 10 amp charger so I don’t know what’s going on with this little battery. It would be nice to have Bluetooth option on this battery so you could check charge details like on Ecoeorthy 100 ah batteries, even at an increased price that would be a desirable option. In all it’s a nice compact little battery.

UPDATE: Was contacted by vendor 11 months after purchase and shortly after my post here. They were concerned about my issue as reported. After several emails back and forth they have sent me a replacement; I received it yesterday. Their customer support was excellent and very friendly. I explained my situation and process and they were not hesitant at all to offer a free replacement. I am bumping my initial rating up from two stars to a full five stars largely due to the customer service and the replacement sent eleven months after purchase. ORIGINAL POST: ... Perfect size and fit for go-to box to power ham radio gear. Sad part is shelf life is terrible. Used three times over past 10 months and had to recharge from 0 volts each time. My other 7.2 Ah backup maintains a perfect full charge over same period. Very disappointed. I may have gotten a bad battery with an internal parasitic drain, way past return window.

So far this works great on my small fish locator. This battery has ran non stop for 16 hours and still going.

The first thing to know is this battery doesn't act like the lead acid family of batteries. with that in mind, do your home work and study up on the characteristics of a lipo 4. they are lighter, charge quicker, and charge thousands of times. They also are shipped drained for safety. when you receive it, it is drained you need to charge it. occasionally they won't recharge, and you need to contact the company as I did. They immediately sent a replacement. i am pleased with my purchase and the seller.