I have always heard that lithium batteries requ ired slow charge, that fast charging shortened battery life. Is this charger safe for the batteries?
1962641
nope, you heard wrong... lithium batteries are the best ones for fast charging.
526908
A AAA charger is a charger, but keep in mind that these rechargeable batteries are a joke. 1. They are very poor in cold temperatures, 2. No way they take the amount of charges advertised by the manufactures. Save you money and buy the more expensive Lithium batteries, well worth the money by way of battery length. When a device is not being used for an extended period of time, remove the Lithium batteries to reduce trickle charge, they do have a good shelf life. Bottom line, rechargeable batteries are a waste of money.
224903
The slow solar chargers will help keep a battery charged but will not be dependable to bring up a discharged battery or keep up with a slow drain on the battery. These chargers only put out fractions of an ampere.
1557739
You can leave it on charge for as long as you want if the charger is not malfunctioning - the batteries stop charging once the light turns green. Lithium batteries last the longest when they are kept charged. YOu don't need to cycle the batteries through charge discharge cycles - if anything - this is more harmful to the life of the battery. The charger will cut off and the light turns green once the batteries are fully charged. IF it didn't, the batteries have the potential to explode or catch fire.
1874766
Hello Geoff, sorry for the delay. I haven't actually used it with any lithium batteries but it has worked great with the alkalines that I have tested. I hope this helps.
504258
Both of my batteries arrived about 50% charged. Each took about 4-5 hours to fully charge (red LED goes off and blue is lit). It's just a very low power charger. A slow charge is supposed to be good for the batteries, but it's not good for me when I'm in a hurry. When traveling I'll charge them in the phone with a 2 amp charger.
1133054
I use the Energizer 4 slot charger that came with the 2500mAh NiMh batteries I bought some years ago, those batteries stopped working after a time but the charger still worked. Its a slow charger that takes 8 hours plus to charge the Amazon basic 2000mAh. I know you cannot use a fast charger with the amazon NiMh batteries, but any charger designed for NiMh regular batt's should work. These Amazon batt's hold their charge well. I use them in a manual speedlight.
2282993
The question posted by Barbara Kennedy was "how fast does it work?". This is a battery maintainer or float charger. It is not suitable for recharging a depleted or drained battery so charge time is not normally discussed relative to this product. If you need a proper battery charger there are many better suited to the task than this product which is aimed at keeping full charge in a battery that is used in a vehicle which is not frequently used.
2139701
It uses AA batteries.Lithium batteries are last longer. l I don't know about the the charger.
1459372
You will need the charger for lithium batteries. The NICAD charger will not work with the lithium batteries, however, the lithium charger will charge both batteries.
312378
I believe that this charger is only for NiCd batteries. I have this charger to charge my BD NiCd 18 V batteries. Lithium batteries have a different charging socket. BD does make a similar fast charger for Lithium batteries (Black & Decker L2ACF-OPE 20V MAX Lithium Ion Fast Charger).
1665889
Yup! I use it on my 12 Volt boat batteries and my 12 Volt car batteries. Like it because it shuts itself off when reaching full charge. My older chargers of a different make could overcharge a battery if left on too long. It is a tad slower than some chargers, but I believe a slow charge is better than a too fast one. I disconnect it when I notice a full charge is reached and in a few months will recharge the battery if the battery is left unused. Hope this helps.
1401933
Leaving the battery in after it's charged won't harm the charger but, it can shorten the life of the battery. Batteries need to be cycled between a full charge and discharge for a long life. A few hours won't harm anything but, I wouldn't recommend leaving it on the charger when not in use.
504259
Not sure you really don't want to let li-on batteries discharge completely. It kills their lifespan. It takes about 4-5 hours to charge from 10-15%
1943715
I believe so. I use rechargeable batteries, but Lithium should work. I haven't had any problems with them and my other devices.
1035282
Lithium batteries hold their charge for months. You do not need to leave it on the charger. This battery size will recharge within 15 minutes. The charger is smart, it will not attempt to continuously charge it when it does not need to. Leaving it on the charger will not hurt, but due to possible liability they tell you not to, since product failure with this much power potential can start a fire (very unlikely, but possible).
1559212
When the light on the wall charger is purple the battery is charging, but if blue it's fully charged. If you store lithium batteries for a long period of time don't have more then 50% charge. Also, don't leave a lithium battery in the charger for a long period of time after its been charged. This will lessen the longevity of the battery. Don't leave the charger plugged in without the battery.