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RECHARGING ALKALINE BATTERIES

I read about a battery charger that is supposed to recharge Non-rechargeable Alkaline batteries, something I thought couldn’t or shouldn’t be done.

I have a great rechargeable battery set-up that includes Ni-MH batteries and a “Smart Charger”.  So why would I want to worry about what up until now has been “use once then throw away batteries”.   Well, we all have disposable batteries around our home.  I store some Duracell AA and AAA batteries for emergencies.  Twenty batteries cost $12.  I thought that if I go through two sets of twenty batteries, I just paid for a new charger.

Let me just say that I will always rely first on my Ni-MH batteries and Smart Charger but this new charger provides some redundancy (a back up smart charger for my Ni-MH batteries) that doesn’t appear to cost me much and gives me the ability to reuse batteries I’ve been throwing away.  There doesn’t seem to be a downside.

 

 

Let me share with you what I’ve found out about recharging Alkaline batteries.

1. Alkaline Batteries can only be recharged to 85%-90% of their original capacity on the first recharge and that percentage depends on the quality of the battery.
2. The power capacity of the battery is reduced with each recharge.
3. The maximum number of time you can recharge an Alkaline battery is around 25-30 times and again that depends on the quality of the battery.
4. Some Alkaline batteries when they discharge their power are just dead and cannot be recharged even once.
5. Very few battery chargers are built specifically to recharge Alkaline batteries and very few of those actually work.

I have found a charger that has great reviews.   I’ve been charging constantly since my charger was delivered and so far I am pleased.  You have to limit your expectations based on the fact  you are working with what has been up to now “throw away batteries”.

 

Alkaline Battery Charger

This is a “Smart Battery Charger” that charges Ni-MH (Nickel Metal Hydride), Ni-CD (Nickel Cadmium), RAM (Rechargeable Alkaline Manganese) and even Alkaline (previously Non-Rechargeable) batteries.

Maximal Power FC999 Alkaline/Universal Charger -This new find is the Maximal Power FC999 Universal Charger.  It will recharge one to four AA, AAA, C, D, or N batteries at one time and  one 9V battery at a time.  Each slot is individually controlled so you could recharge one AAA, one AA, one C, and one D battery at the same time.  The only limitation is that all batteries must be the same type, i.e.  Ni-MH, Ni-CD, or Alkaline.  It can recharge any 1.5 volt battery such as an N battery but I had to make an extension out of a paper clip so the N battery would fit snug between the charge terminals.

It is built with an 8 bit microprocessor to monitor and control battery charge and prevent overcharging.  It also has built-In protection from short-circuit and reverse polarity.

Easy to use, it has LED and LCD displays to show the status of each battery’s charging cycle.  Comes with an AC power adapter.  Currently $28 shipped.

 

Ed Rogers
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