A solid red light means about 25 per cent of the battery's charge left. A flashing red means that it's almost dead. I suggest charging as soon as you see a flashing red light. A common mistake made when checking battery life is to hold down the wrong button.
How do I know if my Di2 battery is healthy?
Checking the main Di2 battery charge level is really easy - you just press the rear derailleur button. Pressing the button for 0.5 seconds or less will turn on the LED, indicating the remaining battery charge.
What happens when Di2 battery dies?
It doesn't switch back to mechanical when the battery dies
SRAM Red eTap has a slight back-up in that the batteries are interchangeable, so if the rear mech goes you can borrow the battery out the front and hopefully have enough shifts to make it home.
How do I get Di2 out of crash mode?
To reset crash mode on 10-speed (6770) and 11-speed Di2 (6870, 9070, R8050, R9150, GRX), you get on your bike and press and hold the button on your junction box for 5 seconds until a red light flashes. The rear derailleur will now go through all the gears, so make sure sure you spin the cranks until it's done.
What does a green and red light mean on di2?
When you check your battery level different lights come on depending on the charge levels: Green for two seconds: 100% battery. Blinking green five times: 75% – 50% battery. Red for two seconds: 50% – 25% battery. Blinking red five times: 25% – 0% charge left.
40 related questions foundWhen should I replace my Di2 battery?
The easy answer is: when it no longer holds charge or depletes very quickly. Shimano say their battery is rated for 300 full charge cycles. This means that if you charge the battery every other week it should be good for about 11 years.
How long does it take to charge a Di2 battery?
The battery may take approximately 1.5 hours to fully charge, and the orange charging indictor light will turn off. Shimano offers a diagnostic electronic system checker for the Di2 system.
How do I factory reset my Di2?
Unfortunately there is no such thing as a Di2 reset - the closest you can get to a full reset is to disconnect the battery for 30 seconds and then reconnect it. That will cut power to all components and restore them to a somewhat 'neutral' state.
How do I know when my Shimano battery is charged?
A yellow light on the charger and a green, flashing light on the battery confirm that charging is taking place.
Can you overcharge a Di2 battery?
Safe to leave it. It'll charge to full then stop with no danger of overcharging or doing damage. Japanese electronics are good at this sort of thing. It takes about 30-45minutes to fully charge so why overnight?
Can I use Di2 while charging?
You can still use your Di2 shifters while the battery is charging (the derailleurs move and the charge light remains lighted).
What is draining my Di2 battery?
Battery drain causes
Temperature, the amount and frequency of your rides, wireless unit usage, battery age and shift habits (the front derailleur consumes about 4 times more energy per shift than the rear derailleur).
Where is the Di2 battery?
The Shimano BT-DN110 internal Di2 battery can be installed in a number of places: the fork, MTB handlebar, a really long stem.. anywhere that fits really. You will most often find it installed in the seatpost and for good reason: this way it is close to junction B and the bike's derailleurs.
What is Rd protection reset?
RD protection. reset. Complete. When the red LED on junction (A) is illuminated, the rear derailleur cannot shift gears. Press the button until the red LED turns off.
How long does a di2 charge last?
When used normally you can expect to get about 2500-3000km of riding out of a single charge, depending on how often you shift and how you shift. A Di2 front derailleur uses about 4 times more power than a rear derailleur will per shift.
When should I replace my derailleur?
Derailleurs will last almost indefinitely. The jockey wheels will wear out in time (tens of thousands of km) but the rest of the mechanism shouldn't see significant wear. It could be that the spring will break at some point due to material fatigue, but that is also a relatively easy to replace part on most derailleurs.
How do you fix a derailleur?
While pedaling the bike, shift one cog larger by clicking the shifter lever. If the derailleur doesn't move the chain into the next cog or hesitates, add one-quarter turn of cable tension (counterclockwise on the barrel adjuster) and try again until the derailleur easily shifts into the next cog.
What is the barrel adjuster on a bike?
Barrel adjusters are small cups that have a hole in the bottom, and are screwed into different points around your bike. They are usually located by your brake levers, brake calipers, gear levers, and derailleurs. They work by increasing the amount of distance an inner cable will travel.
Does di2 self adjust?
The DI2 does not adjust itself. It does, however, know how far apart your gears are. Once you've got one gear—a central one—adjusted, the others are automatically correct, as well. If you hear the chain rubbing on any of the gears, then you can use the special adjustment mode to fix it.
