ExpertPower 12V 5Ah Lithium LiFePO4 Deep Cycle Rechargeable Battery | 2500-7000 Life Cycles & 10-Year lifetime | Built-in BMS

Easy to replace and works great! Its also stores measurably more power than the original and should have a much longer life than the previous lead-acid battery.

Even though charging is not ideal for LiPo from my control box it is very close. So far with about 6 months in the field all the batteries that I've put out there have test clean. Will need more time to see if these will hold up, but they should way out perform the old seal lead batteries!

Great investment for power on my kayak. This sits inside a latched console on my kayak and is wired to a project/connector box. I used heavy-duty Velcro to keep it in place. 12Ah will run my current setup all week. I got the extra capacity for future use when I upgrade my fish finder/GPS.Being a sealed battery, you have many mounting/placement options. I never even see it - the space it is in was not reachable while fishing and, when I get home I just plug the charger in to the project box. I can go on several day trips without needing to charge it. Also, it can sit for weeks or a few months without a trickle charge.Be sure to use a Lithium specific charger.

This is a tough one...on one hand, the quality is excellent, the capacity is accurate, and it seems to be made very well but it’s also still a bit cost prohibitive for a lot of people. It’s getting better and the fact this will cycle thousands of times instead of hundreds (as in the case of cheaper but much less longevity). This seems to be made very well and it’s heavier than the 16 amp hour battery that I got (a much cheaper version from another brand made overseas) but I think the capacity is much more accurate here. It charges quickly, puts out enough power for me as a part of a building battery bank of LiFePO4 batteries, and it’s dependable. It’s also got a good warranty. If you treat it right (and most LiFePO4 batteries) they should cost about the same or just a pinch cheaper than sealed lead acid if you don’t over disacharge them. There is a supposed very good BMS built in and that should help it last quite a while. It’s not the most economical choice per amp hour but it’s checks all the boxes of a quality LiFePO4. I’d buy a 100 amp hour version if I could but it’s just not in the cards for me, economically...maybe one day (I would recommend it if you need that size and it doesn’t pinch your walllet too much to do so). The bottom line? This is a very high quality LiFePO4 battery that is dependable and gives the rated capacity and a little more (with a low discharge rate). I’ve been using this with my solar setup to run some strand lights in the backyard for a few hours and it’s been a champ.Pros:Made wellHits rated capacity (it’s a real capacity and not marketing)Charges wellCame charged mostlyCan use almost the whole capacity (cannot do that with SLA without damage)Good BMS (battery management system) built inDischarge rate is super consistent for most of the capacityShould last thousands of cycles if not discharged more than 80%. I’d think it would still last 2k cycles at a very deep discharge rateCons:Not cheap...not in any sense of the wordOverall, I’d “buy once, cry once” instead of a cheaper alternative and maybe having to buy multiple times.

I was a bit skeptical about the LiFePO4 batteries because I used to have bad luck with older versions of Lithium Ion technology. But I'll have to say that these newer batteries made me a true believer. They might cost a little bit more, but rest assured that the price is worth it, in threefold. Not only are these batteries lighter, but they also pack an extra punch, they are able to handle high demands. Not only do they charge faster, but the charge lasts longer, and even if the battery is depleted, also has a great recovery rate. Onboard technology makes sure that overcharging, undercharging, and overheating is not an issue. You really can't go wrong with these batteries as an upgrade for your device.

Dead after 1 year.Junk.

This battery has successfully maintained our security system in our last power outage that lasted for about 6 hours. Usually all the lead acid battery, even when it’s brand new, did not stand a chance of lasting more than 4 hours of power outage. But this lithium did the job. One thing you want to make sure before installing it is to find out your system wattage and voltage, a little off is okay. Also make sure that you use a separate lithium battery charger (my battery charger’s brand is Tenergy) to make sure that this battery is fully charged up before installation.

Pros: This battery boasts impressive longevity with a life cycle of 2500 to 7000, making it a great investment for those looking for a durable solution.Cons: On the other hand, the limited time to power could be a concern for those who need a long-lasting source of energy. With only 5Ah of capacity, this battery may not be enough for extended use without recharging.I strung three in parallel to power a pool temperature monitor and it will last over night. I started with 2 and it wasnt enough due to a cloudy day so I wanted to add another 5 ah to help it last on those types of days.Overall, the ExpertPower 12V 5Ah Lithium LiFePO4 Deep Cycle Rechargeable Battery is a solid choice for those looking for a battery with a long lifespan. However, its limited capacity may not be suitable for everyone's needs.