BOSCH BLP9 - Group 9-12V Lithium Battery - Powersport Li-ion Phosphate - 120A for Motorcycles, ATV/UTV, Snow Mobiles, Personal Watercrafts, Scooters and Jet Skis - 5.91″ x 3.43″ x 4.13″

Battery is perfect! The adjustability for size is a great option. The terminals in two locations a great idea. So versatile

Super light and powerful plus Bosch is a trusted brand! Enough said.

Battery worked for a short while, but it cannot be recharged. I've used a lithium Noco charger as well as the Bosch branded charger. Both will show that it's 100% charged after a few hours, but then the battery shortly drops to low after being off the charger. This thing was a waste of money, buy something else.

Fits great in my road king, I used the included height adjusters to make it a little higher. Worked out great, I get a very strong start up every time. The battery weighs practically nothing. Overall very satisfied with the batteries performance and the weight difference.

Like the reduced weight. Has multiple negative posts positions to accommodate various applications. Had to modify terminal connections in order to fit 2020 Electra Glide. Not a big deal, but required bending terminal ends from 90° to 45° to prevent interference/crushing against battery case which could lead to failure.

Those who say these are surprisingly small batteries may have ordered the wrong version. The Group 30 comes with two sets of plastic feet to raise the battery slightly. I needed the smaller set to make the battery match the Harley AGM battery in my Tri Glide exactly. Changing the battery in a Tri Glide isn't tricky, but it isn't fun either. When I removed the AGM battery, I noticed how heavy it is. The Lithium-Ion battery is a fraction of the weight and much easier to handle. I had to bend the primary connectors on the bike to reach the battery's mounting holes. These are normally L-shaped, but the L isn't deep enough to reach the mounting hole. A slight bend fixed this. The Li battery turns the bike over noticeably faster, and the lights, etc., are brighter when the engine isn't running. My only concern is that the capacity of this battery is listed as only 8 AH, whereas the original AGM battery had 30 AH. To counter this, the Li battery charges faster—but the capacity could become an issue if you need to run accessories for a long time with the engine off. I've been a big fan of Li batteries for a long time, and have had one in my previous bike for over a decade. This particular battery was the only one I found here that actually fit my battery compartment, despite claims that others would as well. Measure your battery compartment or check your specs before ordering a new Li battery.

This battery mounted right into my 2016 Harley Davidson ultra glide ultra Limited without any issues the bike fires right up no problem even on the coldest mornings I’ve tested it down to 30°. I do keep my bike on a trickle charger all the time, but I would do that with a normal battery anyway so I can’t say anything about it adding or taking away from the performance of the battery I did have to make a slight adjustment to the mounting tabs just bending them out a tad bit it was not a problem. There was no danger of them breaking as long as you do it carefully and once it’s mounted in there, it’s fine. I didn’t weigh the old battery and I didn’t weigh this new battery, but it is probably a quarter of the weight of the regular battery I had in there before.

Terrible experience. I bought this for my bmw r18 and it went kaput in 5 months. Try contacting Bosch support. No one ever picks up the call and they are very slow to respond via emails. The customer support experience is absolutely terrible unlike other US companies. Buyer beware. Wasted $220 on this junk.