Isn't the battery supposed to self discharge to 30% after a month?

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I bought an Ego mower and trimmer last year and after the mowing season brought the batteries inside and put them in a closet. They've been there about 6 months.

From my understanding after about a month they should discharge themselves to 30%. I just took the batteries out of storage and put them in the chargers and they appear to have a lot more than 30% charge. The big battery progressed from 1 flashing light to 4 flashing lights in about 7 minutes and except for the first 30 seconds the fan was on low speed. It's not finished yet, but it looks like it should take less than 15 minutes to finish.

Does it really take that short to go from 30% to full charge or was the battery not at 30%. If it wasn't at 30%, why not?

Edit: so it's taking a lot longer than 15 minutes to charge. It's been about 30 minutes already so I'm guessing the charging percent lights are just wrong.

Edit: so the big battery charged in about 40 minutes. The little one took 5 minutes which makes no sense. That should have also been at 30%.
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Posted 3 years ago

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Official Response
Yes, after 30 days they self-discharge to 30% capacity for long term storage.

Morac, the behavior of your one battery sounds OK.  What size batteries do you have?  The other battery may not be behaving properly, however the 2Ah battery charges in 25 minutes or less from completely depleted.

If indeed the battery is NOT discharging after 30 days you should call Customer Service for a replacement.  To verify this you'll need to leave it sitting for at least 40 days though, as it will take a while to discharge once the 30 day mark passes.  Any use of the battery, plugging it into either a tool or a charger, will reset that 30 day clock.  I'm not sure but pressing the power indicator may even do it; that's just my own suspicion.