ExpertPower EXP33-12V 33Ah SLA AGM Battery for Solar Energy Storage, UPS, Trailer, Security System, Mobility Scooter, Small Marine Battery Backup, Rechargeable 12V Batteries Lead Acid, M6

This has been installed in my 2007 Prius base model for a year now. I use this as the 12V battery instead of the ridiculously expensive OEM battery. Works great, no problems. Update: I left for a a trip for a month and when I came back this battery was completely drained and wouldn't take a charge. So buy yourself a NOCO Genius 1 trickle charger and plug the battery to fully charge it once in a while and also leave it plugged in when leaving the car parked any length of time. I was able to revive my completely dead battery by opening it up and adding 2ml of battery acid and enough distilled water to cover the mats inside. I then high voltage(30v) charged it until it was able to accept 2amps and now its working fine but at a percentage of its previous capacity. There is a youtube video of how you can do this if you are interested. The guys channel is knurlgnar24.

Bought for my 12ft trailer in 2019 (7yrs ago!) and its still going strong but am looking for a larger Ah replacement for when it does eventually die. Charged by a single 100w solar panel and a Renogy Rover 20a controller, it can power internal and external LED lights, power jack, USB charge ports, and the emergency disconnect brakes (legal to do so in my state). If lights are left on by accident this battery stills has enough charge the next morning to power the jack a couple times. Once the sun comes up it doesn't take long to fully recharge.

Works perfect with our trolling motor.

Bought 4 resale discount. 1 had been used, hopefully not damaged by someone needing a bigger one. Terminal washer missing. I don't intend to discharge beyond 90% SOC so hopefully a non issue.

Cheapest, and best quality deep cycle SLA batteries on Amazon when you consider dollars per usable amp-hours, and they have been working well so far. Bought 4 of these for a 200 watt solar array. No noticeable loss of capacity over 3 months. But I rarely ever get down to even a 50% deep of discharge. With a near constant 50 watt load (running humidifier, when needed), the average is 40% DoD per day, and the 200 watt panels fully charge (to float) most days. Adding one more 100 watt panel to square it up a little better. Will update if any issues. Estimating atleast 3 year useful-life, with quality solar controller, and daily use, with under 50% DoD. Then I'm switching to Lithium batts! :)

Only lasted 2 years and now won't hold a charge. Seems like a rip off for how expensive they were. Find a different battery. Picture shows the battery voltage after spending all day charging.

This is a small size battery, it's more for a mower or motorcycle.

Gonna try to make it work but so far not gonna work in my Prius, won't charge while in park but will if I'm moving, battery depletes quickly :/ will update

Fast shipping, product fulfilled what I needed it for. Just a little modification to do due to screws being a little bio.

Ordered on May 26, 2022 - Died on March 5, 2023 Less that a year. Cost of battery $169.44

Pour mon petit moteur de bateau et pas trop satisfaite car la batterie ne tient pas sa charge on l’a rechargée correctement et le même problème est survenu désolé déçu de cet achat

1st issue: Be very careful, the charge rate on this is <10, my charge was 17, ok no problem. I will use my solar trickle charger and a maintenance charger when at rest. 2nd issue: size was indicated so I thought …works. Nope is a small difference mm actually. But it will not fit! 3rd issue: tried to return and was told return not eligible, even though Amazon description say eligible! Now I am stuck with it. Suggest if you are outside of continental US DO NOT BUY. Go to a local battery store.