Battery Varta or Exide

Varta are a pretty decent brand of battery (although their consumer AAs suck), would not expect it from them.

fits perfectly in a NB

I just replaced my dead Zenipower OEM cells with Varta 1254 A3. So far the battery life is exactly as specified by Sony. We'll see if the Vartas can handle the charging regime.

Adding my experience here for others that may stumble upon the thread. I was having really bad+inconsistent battery life with my left and then right buds, where they would die in less than hour. I replaced the both earbuds original batteries with the Varta CP1254 A3 battery and also did a hard reset.

It took a little over an hour to do and finally the battery life is decent again. I was able to run them for a good 3 hours on noise canceling with max quality settings and it's a night-and-day difference.

I've had some good luck with OEM Vw therye where either Varta or another OEM factory battery. 7 years on one...and also 3 years till 50%, lots of variables, to make a battery last or not last.

This one looks like it’s in very good shape, I’ve seen similar for sale for $200 to $300 but the couple I’ve seen at auction sold for $80 and $110 if my memory is correct. Both where in much worse shape than yours.

I just now successfully replaced the battery with a varta cp1254 a4 due to the right one going bad after a year of use, testing it for a few hours now and it worked!

I've been using the varta cp1254 a3 (60mAh) in my left earbud for about a month. The difference is very small (less than 10%). From full charge to low battery warning, varta 20%, zenipower 25+%.

installed new Exide EK950 AGM 95AH to replace same model been there 3years. No change, and also former battery checks to be in nearly new condition still with measured 90AH capacity from fully charged to 10,5v 9hours with 10Amp load.

My Tiguan factory battery was an Exide and it failed after 2 years, mostly in the Northeast US weather.