Has anyone had any issues with the eTAP batteries not lasting anywhere near the 50-60 hours as advertised?
In this last interval, both my batteries were blinking Red already with only around 24 hrs of riding !
Has anyone had any issues with the eTAP batteries not lasting anywhere near the 50-60 hours as advertised?
In this last interval, both my batteries were blinking Red already with only around 24 hrs of riding !
No idea as I don’t have ETAP. SRAM is a darn fine company, as is Shimano, but I hate being the guinea pig these days. With the being said, it seems like quote hours is often different from actual hours and based on how one uses the product. More shfits, more energy.
I haven’t had any issues, though it is fairly new (road) on my race bike so I’m usually charging before an important crit.
Love eTap so far!
I understand and agree… but getting half of the advertised hours seems too much.
I’ve had mine since April, and absolutely love eTAP. Im just a bit concerned about this issue perhaps getting worse in the future…
I too make a point to charge it before anything important !
Are you traveling with your bike on the back of a vehicle to get to your ride location? If so: " According to SRAM: " When traveling longer distances or flying with the bike, SRAM recommends removing the batteries because the constant motion will prevent the system from sleeping."
Don’t know about eTap. When di2 first came out, I had a friend whose bike was fully discharged after 2 -3 rides. Turned out he was leaning his bike against the garage wall and the shift lever was being pushed…
Thats a great point. I didn’t think of that… I do have to drive to and from every ride. ill make sure to take it out and will keep track of how long it will take to charge again.
thanks
Maybe you shift twice as much as their test riders!
It is a function of shifting, not riding. Why manufacturers continue to make idiotic claims in hours makes no sense to me.
eTap sounds like such a nightmare
eTAP is AWESOME !
+1 … Very nice system … wireless after all … Can shift while scratching your ass or shift with both arms raised in victory with the wireless shift mod on your finger!
The device in the left bottom corner (which is small) is all you need to shift … the rest is window dressing …
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Yeah, unless you want to be scratching your ass and shifting the front derailleur – in that case, you’re shit out of luck. What incredibly dumb shift logic.
It is a function of shifting, not riding\
That may be true for a wired system, but not for eTap. The radios on the derailleurs have to be awake to listen for shift commands. “Awake” is determined from vibration sensors. So if the bike is moving (riding, being transported in a car, anything with even slight vibration) then the radios are on and the battery is losing charge.
So when transporting your bike, remove the battery.
It is a function of shifting, not riding\
That may be true for a wired system, but not for eTap. The radios on the derailleurs have to be awake to listen for shift commands. “Awake” is determined from vibration sensors. So if the bike is moving (riding, being transported in a car, anything with even slight vibration) then the radios are on and the battery is losing charge.
So when transporting your bike, remove the battery.
Ah, interesting. Just curious if it pushes battery charge inelligence to head units a la Shimano di2 d-fly? If not, is it just the blinking red lights that tell you when they need to be charged? How long after those blinking red lights before you lose the ability to shift entirely?
Hello PubliusValerius and All,
Not so … take a squint at the device in lower left of the photo above … look closely at the inscription between the + and - … Note that it is labeled FD … which SRAM has cleverly used to indicate Front Derailleur … so yes … if you ass itches … scratch and shift the FD at the same time …
It is a function of shifting, not riding\
That may be true for a wired system, but not for eTap. The radios on the derailleurs have to be awake to listen for shift commands. “Awake” is determined from vibration sensors. So if the bike is moving (riding, being transported in a car, anything with even slight vibration) then the radios are on and the battery is losing charge.
So when transporting your bike, remove the battery.
Ah, interesting. Just curious if it pushes battery charge inelligence to head units a la Shimano di2 d-fly? If not, is it just the blinking red lights that tell you when they need to be charged? How long after those blinking red lights before you lose the ability to shift entirely?
Here is a link that describes battery state indication:https://sramroadsupport.zendesk.com/hc/en-us/articles/206805758-What-happens-when-a-battery-is-low-Will-the-shifts-slow-down-Will-the-shifter-work-intermittently-
Both battery state and g.)ear indication are sent via Ant+. I found a Garmin page that said they show the lowest of the 4 batteries for eTap (2 shifters, 2 derrailleurs).
Or you could mount a Blip between your cheeks, and shift from there. I think that’s how Howard Stern has his set up.
Hello BrianB and All,
Or … http://www.hindawi.com/journals/ahci/2013/802063/
Maybe this is how Stephen Hawking might do it (if he could ride a bike) … think it and it will happen …
Excerpt in part:
"Humans have traditionally interacted with computers or machines by using their hands to manipulate computer components. This kind of human-computer interaction (HCI), however, considerably limits the human’s freedom to communicate with machines. Over the years, many attempts have been made to develop technologies that include other modalities used for communication, for example, speech or gestures, to make HCI more intuitive.
Recent advances in cognitive neuroscience and neuroimaging technologies in particular have allowed for the establishment of direct communication between the human brain and machines.
This ability is made possible through invasive and noninvasive sensors that can monitor physiological processes reflected in brain waves, which are translated online into control signals for external devices or machines."
I am still hoping the automatic shifting will be compatible with the current eTap when it comes along.
It is a function of shifting, not riding\
That may be true for a wired system, but not for eTap. The radios on the derailleurs have to be awake to listen for shift commands. “Awake” is determined from vibration sensors. So if the bike is moving (riding, being transported in a car, anything with even slight vibration) then the radios are on and the battery is losing charge.
So when transporting your bike, remove the battery.
Ah, interesting. Just curious if it pushes battery charge inelligence to head units a la Shimano di2 d-fly? If not, is it just the blinking red lights that tell you when they need to be charged? How long after those blinking red lights before you lose the ability to shift entirely?
Not only does it send that data, it doesn’t require a clunky d-fly add on. Which is an additional cost add on not even sent with di2 groups.