Battery Varta or SAMSUNG

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.

Note the XC5.0 still holds up very well here even with smaller 18650 or so cells.

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.

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 actually like this change. It's telling me the actual battery charge. What I don't like is at least on my S 8 Ultra is it hits 85%, then starts discharging the battery. The battery gets as low as 81% before charging again. Personally I think this charge / discharge cycle is going to be more harmful long term than just charging to 100% and holding there. So I ended up turning it back off.

In my old Audi, I had a non-OEM battery and I did the +1 in the serial number trick. That battery failed in a couple of months. I honestly think it was a bad unit.

Got a Varta battery and it only lasted 1.5 years. My car is parked under the sun on weekdays but was expecting more from the battery