I think it's a combination of cable and power source issues. MicroUSB cable connectors are notoriously finicky. Had two new batteries show a red light on the charger. Changed the original cable to a shorter one, got one of the batteries charging (started on yellow and finished on green). The other still showed red. I guess the front USB connection on my PC didn't provide enough power. Connected the cable to one of the faster USB ports at the back and the second battery started charging (started on yellow and finished on green). Just as an FYI, if anybody else runs into the issue and comes here.
This just saved me a lot of time and aggravation. Thank you. I just bought a new bike with Force for a pretty penny and it was the damned USB cable preventing me from charging. Turns out having a micro USB cable tightly coiled sitting in a box in a warehouse for god-knows how long is a recipe for disaster. In other news, water is wet. Clearly this is not an isolated problem either. Pretty embarrassing last-yard fumble from SRAM on this imho.
8 times and it worked. Thanks for the tip! I guess it charges a tiny bit in every single try and stops charging when the red light comes on. Those tiny bits of charges help the battery pass a threshold. After the amber light, I unplagged and plugged multiple times, and all got me an amber light.
The beauty of the internet! I was having this same issue with a brand new SRAM battery where the charger showed a red light and the battery wouldn't charge. After following this tip to repeatedly unplug and plug in the power cable to the charger, I got an amber light. (It took me approximately 12 times)
I had this same thing happen. I brought the batteries to the local bike ship. They put them on their USB c multi charger and the light was yellow. Then we tried my charger and the light went yellow. Now they charge just fine.
I work on Lithium Ion gang chargers all the time. Each slot will vary slightly. Try taking the fully charged battery in each charger, see how long it takes to change from amber to green. The time will likely vary between the chargers, and will be repeatable.
My battery takes less than 15 minutes to charge after a 20-28 mile ride. I have had some issues when the battery does not sit well in the charger so I just unplug, re-sit the battery and plug the charger back into the outlet. 😀
That's true of all Lithium battery chargers. There are slight differences in component values. The original charger has a slightly higher threshold for low battery voltage. Both chargers are likely within 5% tolerance of their minimum tolerance for low voltage. Both chargers will work as long as you don't let the battery voltage become too low.
Wears of recharging cycle batteries inside your home, my friend burnt his garage to the ground. The home he was renting almost went with it. Lost his bike and 20 surfboards
I was playing around with same issue end up putting the battery in to the charging station first then plug it into the wall and that seems to be solved my problem every time. Definitely should not be like that.
I think it's a combination of cable and power source issues. MicroUSB cable connectors are notoriously finicky. Had two new batteries show a red light on the charger. Changed the original cable to a shorter one, got one of the batteries charging (started on yellow and finished on green). The other still showed red. I guess the front USB connection on my PC didn't provide enough power. Connected the cable to one of the faster USB ports at the back and the second battery started charging (started on yellow and finished on green).
Just as an FYI, if anybody else runs into the issue and comes here.
This just saved me a lot of time and aggravation. Thank you. I just bought a new bike with Force for a pretty penny and it was the damned USB cable preventing me from charging.
Turns out having a micro USB cable tightly coiled sitting in a box in a warehouse for god-knows how long is a recipe for disaster. In other news, water is wet.
Clearly this is not an isolated problem either.
Pretty embarrassing last-yard fumble from SRAM on this imho.
This helped me too, thanks!
I had to play around with several cable/power adapter combos to find one that worked.
Whatever the case is, your original point still stands strong: one more "simplification" that can let you stranded somewhere.
trying to plug in and plug out the battery around 10 times. I did it and the battery turn from red to yellow.
8 times and it worked. Thanks for the tip! I guess it charges a tiny bit in every single try and stops charging when the red light comes on. Those tiny bits of charges help the battery pass a threshold. After the amber light, I unplagged and plugged multiple times, and all got me an amber light.
thanks, it worked !!!!
The beauty of the internet! I was having this same issue with a brand new SRAM battery where the charger showed a red light and the battery wouldn't charge. After following this tip to repeatedly unplug and plug in the power cable to the charger, I got an amber light. (It took me approximately 12 times)
❤❤ thanks you bro it work’s
IM hoping your tip will work. Had it on all night bought 3 differant plugs spent £30 ahhh did your tip..its turned yellow...come on
Luckily I don’t have to charge my shifter cable for my ride today 😂
The label aside of battary is different. So maybe different electronic standard. The bottom label of charger is different ,too.
I had this same thing happen. I brought the batteries to the local bike ship. They put them on their USB c multi charger and the light was yellow. Then we tried my charger and the light went yellow. Now they charge just fine.
I work on Lithium Ion gang chargers all the time. Each slot will vary slightly. Try taking the fully charged battery in each charger, see how long it takes to change from amber to green. The time will likely vary between the chargers, and will be repeatable.
Should email SRAM, give them feedback to correct products. They are a decent company and will appreciate the feedback.
My battery takes less than 15 minutes to charge after a 20-28 mile ride. I have had some issues when the battery does not sit well in the charger so I just unplug, re-sit the battery and plug the charger back into the outlet. 😀
That's true of all Lithium battery chargers. There are slight differences in component values. The original charger has a slightly higher threshold for low battery voltage. Both chargers are likely within 5% tolerance of their minimum tolerance for low voltage. Both chargers will work as long as you don't let the battery voltage become too low.
So what can be done if the battery voltage has become too low? None of my 3 led lights are lighting up, only the rear blue one is.
Wears of recharging cycle batteries inside your home, my friend burnt his garage to the ground. The home he was renting almost went with it. Lost his bike and 20 surfboards
I was playing around with same issue end up putting the battery in to the charging station first then plug it into the wall and that seems to be solved my problem every time.
Definitely should not be like that.
Cheap Chinese solder. Open it up and resolder all the connections with silver solder and it will work.
Weld it