QTY 2 VMAX SLR155 Vmaxtanks AGM Deep Cycle batteries 12V 155Ah each SLA rechargeable battery for use with Pv Solar Panels Smart chargers wind Turbine and Inverters

Wow, these things are big and heavy (not unexpected, but still). No doubt the plates are thick and large, which gives it the weight, and means they didn't scrimp on materials. Reading 12.97v right out of the box, so I imagine that's close to a full charge.Big tip for off-grid use: You never want to mix and match batteries for your battery bank; same brand, same voltage, same Amp-hour capacity. This will maximize their life. And try to buy all you need at the same time. Adding new batteries to existing old batteries doesn't work all that well.Normally, regular flooded lead acid batteries are the cheapest way to go for off grid use, but these are not that much more expensive, and it's certainly worth not having to deal with checking water levels and dealing with explosive and corrosive fumes. In reality they are not fully sealed, but they will not leak or lose water. You don't want to enclose them with electronics because of the potential buildup of hydrogen gas. If you use these on a boat you will have to keep them in a separate ventilated container away from ignition sources, or you will not pass Coast Guard inspections.Judging from the ratings I don't expect a problem, which is why I bought these instead of cheaper batteries, but like everything in life, time will tell how long they last.I bought this as part of an emergency power backup and my system should be able to run my fridge 24/7 if I calculated everything correctly. I might even set it up to power the fridge regardless and try to save a little off my electric bill. Yeah, I know, don't expect much of a drop. Going solar is expensive and you certainly don't do it to save money. It IS good, however, for emergency power as well as remote locations without grid power. I'm a bit of a 'prepper' (don't really like that term) from living in hurricane country most of my life (I've since moved but still like to be prepared for the unexpected). If you've ever been a week or so without power you understand where I'm coming from, and gas for a generator can be tough to find when all the gas stations are closed for lack of power to run their pumps, and if you do find some open, they usually ration how much you can buy, so you have to keep running back for more. Just ask people who went through Hurricane Sandy.

They just arrived today, both had 13.05 charge.Sadly the packing gave it's life but the batteries were fine. Impressive size, weight and build quality.Ill update over time.Update, still working hard for me with no noticeable loss in capacity or discharge rate. At this point in time, I am pleased with this purchase.Another update : they still take a full charge and provide more than adequate power for my needs. I would recommend these two batteries.4.5 yrs later and they still are putting out plenty of juice! Solid performance. At the 3 yr mark i did buy and use the BC1220 VMAX to rejuvenate them but only a slight improvement because they have been charged well by my solar system.

These have been performing so well I had to buy more. I'm currently using 4 of these batteries and 1KW or solar to keep my entire kitchen off-grid. Very impressed with the build quality. I'll add a video review I did on these and my setup ( http://youtu.be/q-wTUEVQiDA?t=8m8s ) Will be buying more of these in the future, may even replace my car batteries next time with Vmax brand, just love them!Make sure you have a place for the fed-ex guy to drop a pallet, yes I'm talking "beep beep beep, ca-chunk" pallet. These guys are 90+ pounds each, the poor guy/gal is not going to walk up with 4 in hand :)If you're using these for solar, buy double what you think you'll need, your investment will last a lot longer that way and give you some wiggle room on consecutive cloudy days.

Got two of these bad boys last summer for a camper van solar system. Have them hooked up to a 400w renogy solar kit, and they provide power to led lights, a diesel heater, an inverter, 12v charging ports, a maxxair fan, and soon a 12v alpicool fridge. I havent had a single problem with them so far, plugged right in with a full charge.

The batteries are working great so far. They shipped in double boxes around each battery and the are 94 lbs each. The batteries were fine. The worst part was getting them into the house with no handles. Probably best to just leave them where they are and remove the boxes around them. The handles are rope and plastic. I had no trouble getting them into my shed. I'm a woman.I've added a pic of my set up. I've since changed my charge controller to something a little better.

Great batteries. I have two hooked up for 310amphrs. Great slow discharge. Good power to my DC-AC inverter.Ran a test for 30hours and only use 60% of amphours

Installed in 2019 entegra coach vision rv, I use them for 10 hours continuous heater on my rv before just 2 hours with this battery it gives you more and I will buy some more for my solar

Amazing! and a must have if you’re going to provide your own power for years to come. Just 4 of these babies run my home nonstop every day and night for the last year A+