Weize BCI Group 31M Dual Purpose AGM Battery, 240RC 825CCA 12V 110AH Starter & Deep Cycle Sealed Marine & RV Battery

The item is awesome, but the shipping was delayed a few days from when it said that it would arrive and I needed it faster. No response back from the seller!!!

So far extremely pleased with the Weize 24m batteries that I purchased from Amazon. 5 days boondocking and they always showed Full charge on my Renogy 200w Suitcase Solar Charger that I also bought on Amazon. Time will tell.

You had better have some help putting this in your boat. It's definitely no lithum. This thing is heavy! I have not had it in my Cobalt 222 very long, but compared to my other battery, it spins the motor and starts the 8.1L big block almost effortlessly it appears. A welcome change. It charges quickly. I am not sure of the longevity, but I was quite impressed with the packaging, the instructions and the build quality so far. They say most batteries are produced by a handful of manufacturers and then branded. I am not certain of that and so I cannot speak to it. I will say so far so good on this one and for the price point, this might be an exceptional find. Again, its one heavy unit so might need some help getting this where you want it in your boat.

Batteries arrived, one was packaged well and survived the trip! The second was clearly some type of return, was put in an oversize box and arrived somewhat damaged. The handle was broken off and the case had a dent in it. Also missing bolts and instruction sheet. Tested that battery and it was fine. Overall they look good, but they need to take better care with shipping, and if you are going to resell a return, make sure it is in good condition.Update: Customer service was quick to respond and take care of the situation. Definitely a step ahead of other sellers and that was most appreciated. Giving them another star for that!

I ordered two of "Weize BCI Group 34M Dual Purpose AGM Battery, 120RC 650CCA 12V 55AH Starter & Deep Cycle Sealed Marine & RV Battery"s for my 8-cylinder 253 HP Mercury boat engine starter. They arrived in two days! they were totally enclosed in a thick foam box, no worries!! The quality of this battery is exceptional and shipping was fast. I liked this battery so much and for the price. And they start my boat engine immediately within one second right after you turn on my boat starting key, and you can feel these batteries are so powerful that they push the starter easily and quickly! It says 2 year warranty and hopefully they will last longer for a few years. Let's see and fingers crossed.

On June 27th I purchased three of these batteries for my boat, and they were installed on July 2nd. On August 15th I suddenly had a problem with one of the three batteries. Even though the 30 day warranty had expired, they sent me a brand new replacement battery. All I had do was send them pictures of the dysfunctional battery, they didn't even make me return it. Their service rep wrote to me several times to make sure I got the replacement. Yes bad that it broke in the first place, but these guys back their product!! Strongly recommend.

Was almost overnight delivery and well packed in the boxes. Was fully charged when delivered so was able to install immediately, I bought these to replace two Optima gel batteries in my aged RV, one was 10 yrs old and the other 14yrs. Hopefully I'll get that kind of life from these but didn't mark any stars for longevity as I really have no idea. BUT I did not plug into shore power when installed and so far been over a week and are still fully charged with min. usage but there is always a ghost charge in any rv so it's handling that well. Bought these as are half the price of Optimas so am hoping for the best. Note these come with nuts and washers to hook them up parallel, which I appreciate. So far so good.

Weize is a great Chinese battery, despite social media outlook on them. I purchased this battery to start my diesel generator on my boat, which it does with ease.I'm now going to purchase a few more for my boat's volvo penta diesel main engines.