Mighty Max Battery YTX20L-BS GEL -12 Volt 18 AH, GEL Type, 270 CCA, Rechargeable Maintenance Free SLA AGM Motorcycle Battery

Excellent quality battery came charged and ready to use. I have used these batteries for motorcycles and ATV in the past and they are a great long lasting battery. Mighty Max Battery’s keep you running when other we let you down, you won’t be disappointed !!

Service center wanted to charge an arm and a leg to replace my i3's battery (the 12V one, not the main one.) Turns out the battery is 100% proprietary (because... BMW), so you can't find it for a good price online or find it AT ALL at local shops, nor do any 3rd parties make one. Worse yet, rumor has it on forums that BMW's OEM batteries suck. They have poor cold performance and a short lifespan, despite the high cost. Well, after taking measurements and trudging through *battery after battery* manually, I finally discovered this one! Not only does it exceed the CCA and capacity of the original, but it even looks hella cool in the process. Amazon was sure to warn me this wasn't "compatible with my car," but I am not known for taking the conventional route. However, I am happy to report that aside from some minor tweaks to the BMW proprietary L-bracket(tm), namely several extra washers, it fits flawlessly, including the OEM battery terminals. I've had it installed for two months now and safe to say it's been working flawlessly. I am leaving this review for anyone who may happen to have an i3 or other BMW with the same battery in need of a replacement, because it certainly wasn't easy to find.

Price is great, Exact fit for oem holds a charge good

So far working great. Heavy battery and compatible with many ATVs. Owned several Might Max batteries over the years and have had good results.

DO NOT BUY. JUNK BATTERY. WENT TO START THE BIKE WOULDNT TURN OVER AND FRIED MY $300 MATCO JUMP PACK. IF YOU WANT HEADACHES,PROBLEMS, AND AN OPPURTUNITY TO RUIN YOUR HARNESS OR BIKE THIS IS THE BATTERY FOR YOU. ITS A LIABILITY.

Great battery for the money but don’t expect it to last forever. I have to keep mine on trickle chargers, but they fit perfect. Start up the four wheelers and buggy and have decent power.

I could not be any happier. I was a little hesitant because of the price I bought this in July used it for a couple of motorcycle events and it’s still going strong now in February. I live in Florida and the heat is very hard on batteries and yes, I would certainly buy this battery again.

So far so good. Installed and fits (snug) in my 2005 Honda VTX1300R. Arrived charged and at 13 volts and cranks over the engine as expected of a new battery. Also as expected from the price it’s an import, labled Made in Thailand. My last battery was a yuasa and lasted three years/winters. I will try and update this review if anything unexpected occurs.

Actualités GEL BATTERY without having to remortgage or sell à god damn kidney!!! Will never buy another brand unless I REALLY can not.do otherwise 10/10 tell everyone... I am :)

Funciona excelente

Excelente batería, vivo en donde el clima es extremoso y las baterías de acido duran poco.

These batteries are the best quality i have found yet. My bike caused it to near fully discharge and it charged back up and held its charge.

Excelente batería le quedó perfecto a mi Yamaha Virago XV700 1985, prende al llavazo! De principio al verla me dio la impresión de estar muy grande, pero al ponerla le queda perfecto.