Shorai Inc Lithium Power Sports Iron Battery 21AH 12V EQ "L"6 Review

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This batter performs well, never needs water, is about 10 pounds lighter than the stock battery, and was a breeze to install. I replaced the lead/acid battery on my BMW R1100RSL with this one. The install was about 20min. all the electrical connections were easy to make. This battery is smaller than the lead/acid type and most of the install time was spent cutting some of the supplied foam spacers to provide a custom fit in the battery holder. I have had no issues starting even down to temperatures in the teens. I also don't have to keep it on a battery tender all the time.

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Very light, unit comes with post adapters and foam to make battery match the original size wise. Crank the BMW 1200 rt fast

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Saved me over 10lbs from stock battery and can feel the difference not having that extra weight up high on the bike. No longer need to use a trickle charger. The bike has sat for 2+ weeks and it turned over with a very strong start. Better than the OEM did even when new.

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I've had this on my '04' R1150RT for 6 months now. I had purchased the suggested replacement that so many swear by, the Odyssey PC 680 battery but once delivered I was surprised how incredibly heavy it was in comparison to the BMW branded Exide gel battery.

With the additional bodywork, front fairing and huge fuel tank the RT series Oilheads are top heavy to begin with. Adding a few more pounds up high would only make this worse. That's when I decided I'm going to try the Shorai.

As another reviewer said, it's as if this is little more than an empty plastic box. It's size and weight is amazing. How will this ever start the mighty Boxer I don't know???

Here's the specs:

OdysseyShipping weight 19 Lbs, 12.87 volt charge as delivered

Shorai-Shipping weight 4 Lbs, 13.38 volt charge as delivered

Well, 6 months now and never a problem. I have found if not on the Deltron/BMW "Smart charger" that it has a problem starting after 4-5 days, same as with the tired Exide battery but....keep in mind the battery has to keep the volatile memory settings in the Motronic engine controller, the clock on the Rider Info Display and I have my Garmin Quest GPS hot wired constantly to keep it charged. If it weren't for that, I think like others have said it would always start the bike.

My Garmin Quest GPS is an older unit with little choice available for a replacement internal battery. I learned if it is allowed to drop to a very low charge, it will not boot or work at all. The only way to resolve this is to keep it on the charger when not riding, hence the need to keep the bike on a charger. Off the charger for 3 days it will start, 4 days is 'iffy', 5 days it will not start.

The main advantage on the BMW's with the Shorai is you'll find the reduction in so much weight up high makes riding dramatically easier, a real plus in my mind.

Will it outlive conventional batteries?? We'll see. So far I'm quite pleased with it.

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This think is awesome. The battery weighs nothing compared to the battery it replaced and cranks the bike much better. Would recommend this to anybody that is looking for a great battery.