I've just unpacked a pair of new Varta 70 Ah lead acid leisure batteries (Not AGM or Gel) and checked the voltage at 12.4 volts. I'm not sure if this is OK for a new battery assuming that it was shipped at 12.8/12.7 volts. I have phoned the supplier who was not willing to provide a date of manufacture ("you must go back to Varta") and after a couple of phone calls admitted that they had been delivered in March this year. My question is, does this voltage drop matter and is to be expected? Is there an expected rate of voltage decay over a period of time? They could have been in a Varta warehouse for a while also.
Thanks, Mike
Thanks, Mike