Plenty of back-up power for the house. After positioning batteries (very heavy); connections were a breeze.

This is my 2nd purchase of Vmax batteries from this seller. I bought a 125ah 6 or 7 years ago. It's still working good. Great product and great seller. Looking forward to many more years of great use from Vmax.

I purchased 2 batteries, have 5 100W solar panels, 40amp charge controller and a 1,000w inverter.... with this set up running a large BODEGA 12v cooler all day long along in the texas summer heat never drop below 88% charge and it easily charges both batteries by noon. Love these heavy batteries

Replaced the sealed lead acid deep cycle group 27 with this AGM, better to have this one battery than two because of space concerns. Put this in the RV class C house battery, starts up the 4kwh generator no problem. Runs the 1000 watt inverter. Will update this review after I've used it for a couple of trips and months. Update after a year, this has been working great! It can even help start the engine if needed. Can sit and take them hold a charge with no issue. Highly recommended!

I have purchased two of the 200ah batteries for my house boat. I have 200w solar panel system maintaining them. I run a 3000w Inverter among rest of the electronics on the boat (not motor) and we go out for 2-3 weeks at a time and never run low on power. I did a ton a research before purchasing and when hooked up correctly with the right size batteries for your system (so they never run below 50%) These work great and will last up to 10yrs. One of the batteries i had to send back twice due to being smashed during delivery. but they said no prob and had it picked up from my house and shipped me a new one till i got a perfect battery.

First, those where the only one to fit on my RV Trailer battery holder )perfect size and fit. Second, those baby are humongous (comparison with Optima D34M and D31M), and do a good workout or ask for help to carry them, they are not light at all (well 200Ah AGM battery, they won't be light). I have 2 of those, charged by 600 watts of solar panel, and I am super happy with the purchase. They arrive with a strong charge already, 12.9V when delivered, I was happily impressed. If you don't want to go LiFePO4, this is very good. edit : a little over 2 years since I purchased them. no problem at all. change is still held well as the first day I installed them. Even in extreme heat (Socal heatwave), they won't flinch. I live on that trailer and they are my sole power source (with the panel). so they are always used for charging phones, power 12v fans or 110v fan (through inverters).

I previously purchased the 200AH battery 4 years ago and it has worked like a champ with zero issues. However, I recently sold my RV and left the battery with it. Now, without a 2nd thought, I bought this battery again for my new RV. It is high capacity, works great with a solar charger, and is very reliable.