Semi Integrated Battery - charges, no power output (no voltage)

[jeffwmcwhirter]

Hello fellow RAD owners...

I had two batteries fail while sitting still over the last couple months.  I am able to charge them (currently fully charged) but getting 0 volts output.  Fortunately, I am still under warranty and RAD is replacing them (estimated 4 weeks to deliver).  Has anyone else had this issue?  My wife and I use it for casual rides with our daughter around the neighborhood and havent done any long distance rides, so overall mileage is low (less than 2-300 miles on each bike acquired in May 2022)

Neither RAD nor the bike service provided any answers to why the batteries failed.  Any thoughts?  I am concerned that the replacement batteries may suffer the same fate (bad charger?  Leaving batteries in bike while bike is not in use?). 

[Dp135]

We had the initial battery fail they sent a replacement and that one didn't even light up and they told me this

Unfortunately we have noticed a higher failure rate in new batteries recently so it is most likely a battery issue still.. We had the newest battery processed your way yesterday go through a double check and make sure it should solve your problem.

The batteries that were bad has a serial that
began with CAP . They sent a replacement again. Serial with BDLGRADE. That works.

SO look at your battery and contact them, if applicable, because they are aware there's an issue

[inoxa]

all the more reason not to have a semi integrated battery. 
Yes they looks nice but not worth the hassle if you need to replace with an aftermarket battery.