Is the red light on the charger suppose to stay on or blinking for the battery to charge?

sounds like the batteries that you are trying to charge are caput, if it stays red they are not charging if it flashes red its charging if its green they are charged, some chargers work different so check your instructions.

Buy an el-cheepo battery charger kit and charge the batteries.
the olymup charger doesn't like non genuine batteries.

Welcome to FixYa.

Red light indicates that the battery is charging. The light will goes off to inform you the charging is complete. Possible that the battery was alreay damaged since you left it charging overnight. Charging time is approximately 5 hours only.

I suggest that you have to replace your battery with a new one.

Feel free to send us your suggestion or comments if this solution was helpful.

Thank you for using FixYa.

The blinking light on the charger indicates that the battery needs to be replaced and will not charge. You can buy a replacement lithium battery online at sites like Amazon for less than $10.

Hi,

Yes, you are right.

The charge indicator light will keep flashing till the battery is fully charged.

I assume you charging battery in charger when it blinks.
This means the charger cannot charge the battery, as the battery has been left too long discharged & annodised inside...new battery required i'm affraid!

It is normal. Just push both sides of the charger in. It happens all the time.even though it might stay blinking its normal

Clean contact points of both battery and charger with q-tips dipped in rubbing alcohol. This solved my problem with blinking lights and not charging of the batteries.

Remove battery from charger. Unplug charger for a minute, then plug back into outlet. Reinsert battery and see if red LED comes on and STAYS on solid. If so, charge for about 5 hours.

If you need further help, I’m available over the phone at https://www.6ya.com/expert/travis_e264b9f3ca4047ae

go for the new charger. Keep the battery, always good to have a couple of batteries[I have 3 lions and when I was using AA's I had 6 sets of 4.