Re: I found a universal battery charger dropped by MFJ.


Yes you can recharge Alkaline Batteries, but be careful. They can get hot so charge slowly, can leak or split (then throw away), or pop or explode. A general rule to charge at no more than 180-190mA for AA batteries, and 90-95mA for AAA batteries. Just searched the Internet quickly and a couple of sites said to charge briefly, then let sit. One said 10 minutes on, 50 off. Another said 30 minutes on, 6 hours off. Here is one site I found with good information (in my opinion):

Bob, N6VZO

On 1/26/21 8:45 PM, Tim Spurgeon wrote:
CMRA gang and Richard (W6RKK):

Several years ago, I bought a universal battery charger, mainly for the purpose of recharging Li-ion 18650 batteries that came in my Rig Expert AA600.

It wasn't until a week ago I tried a new feature on the charger; to charge alkaline AAA batteries. Over a couple of days I slowly recharged three batteries
out of one of my flashlights, and sure enough it worked. I don't know any more than it worked on alkaline batteries that I use every night.
I don't know how many recharge cycles I can get from alkaline batteries, but I did get one, so the price I paid for the AAA batteries is now halved. I am

When I went to the MFJ catalogue, the recharger was no longer listed.

However, I found it on Amazon and WalMart listed as: Universal Smart Battery Charger, or search for FC997, approximately $37 (don't get the batteries).
Then you will be set up to recharge any small battery commonly used in your gear.

I know that we should not use our CMRA site to sell stuff. However, batteries are part of our gear that we all must have for radio sport
and I thought this information would be useful. It has sure helped me!


Tim E. Spurgeon

Join to automatically receive all group messages.