Features
SHIMANO 142350 Dura Ace Di2 Battery features is:
- Lithion-Ion 7.4V technology is extremely reliable
- The high performance battery will keep you bike shifting for an average of 1000 miles per charge
- Fits any road bike & has a quick release for easy charging
Reviews
Below are some critical reviews about SHIMANO 142350 Dura Ace Di2 BatteryI purchased this batter a couple months ago. My original battery lasted five years. I would charge twice within the riding season, once party way through spring when I'd get my bike out and once in late August to get me through fall. This year it kept dying on me so I knew it was time to replace. I purchased this one and I'm having to charge it every two weeks or its completely dead. It has screwed up rides for me now and I would like to get a refund but you can't contact the seller on this site.
Battery was defective and would not hold a charge. They would not replace/refund and said they were waiting to see how the maker (Shimano) responded to them First, before they make a final decision on if to replace/refund. Still pending...
I purchased a new bike in April with the Di2 system because the non Di2 bike was out of stock. The only difference in the bikes was this system and while it hasn't been great it hasn't been bad either.I was only getting 500 miles or so out of the stock battery so I picked up this as a spare. I should say that the new battery works as I would expect, getting between 600 and 800 miles. The stock battery is getting between 200 and 400 miles. I tried to warranty replace the battery from the store I purchased the battery from and after changing and testing all the electrical systems on the bike Shimano basically stopped talking to them. Leaving me no where.This battery was a good one. I'm guessing my stock battery was connected to the bike in a warehouse somewhere for a while which lead to its low capacity, or it's just bad.If you buy this battery be sure to charge it up and run it down as quick as possible so you can make sure it's giving you the right mileage. If not I hope your interaction with Shimano was better than mine.
Below are some positive reviews about SHIMANO 142350 Dura Ace Di2 Battery
It's a di2 battery, seems t work normally and holds a charge. Not much else to say!
Awesome price works perfect
Fantastic backup battery for my bike!