A:AnswerI tried to charge 3 batteries but the charger began flashing.
I suppose that the charger won't do 3 at a time.
How do I charge 3 batteries when I can't find the 4th one?
A:AnswerIt has no cord to plug into the wall, and no wall charger.
It uses a USB cable (provided) to give the charger power to charge the batteries with.
This perhaps explains why it is *not* a 'fast' charger: it can take up to 6 hours to fully charge a battery pair! (It charges them in pairs.)
A:AnswerThank you for reaching out to Energizer. It is always advisable to buy rechargeable batteries that have been recommended for Panasonic cordless phones.
For any further information you can reach out to us at 800-383-7323 or can send us an email at [email protected].