When the batteries are fully charged do I need to take them out, or can I just leave them in until ready to use?
2058860
The charger SHOULD turn off or provide a low level trickle charge, so leaving the batteries in the charger should not be a problem. BUT, most of the chargers I have purchased over the years had "fine print" in the directions not to leave the batteries in the charger for more than 24 hours. Why? I don't know, but I make it a practice to remove the batteries after no more than 12 hours.
80907
Yes, after you mount your unit and attach the charger wires to the batteries you are good to go, no need to remove them from the batteries.
1035281
I read somewhere you shouldn't leave the batteries and a charger. I have for tools now that run on those batteries. I use them in a commercial capacity And have for 5 years.
1012260
Yes. They come pre-charged. The manufacturer claims that these are better than other rechargeables at keeping their charge on the shelf, but they also suggest that customers who wanted top performance from the batteries might want to charge them fully before first use.
1838894
No, ALL New Rechargeable batteries need to be charged PRIOR to use. Using the battery BEFORE charging it will reduce it's life.
1973041
The instructions are easy... Plug into wall or 12v (lighter) outlet. Batteries will only fit one way into the charger. light will indicate when charge is full. I have not had an issue with leaving them in too long. They will not "over-charge".
1565282
By pressing that red button, you can completely discharge the batteries before charging them. If you don't press the button it will the charge batteries from whatever percentage of charge they have to full charge!
1567078
We leave them on a little while longer without noticing any harm - and nothing in the packaging of any charger I've had suggests you have to get the batteries off immediately. I wouldn't store my batteries there :) But all that happens is the light for the charged battery goes solid and the others continue charging if needed.
297025
I try not to leave them too long after they are done charging, but the times I have (a couple of days)there wasn't a problem. I wouldn't leave them in for weeks, though. I have read somewhere there is a very slight drain over time.
156184
Yes is the easy answer, But... If you research general information on Lithium-Ion Batteries you will learn that Full Charge is not ideal for storage. So, if you can, take them out of the charger.
1852427
Taking it out is important to me because I would like to have an extra battery charged for when the first one runs out. I don't believe I can get the whole yard done in the time one battery will last, but I don't want to wait until 10 hours later to finish. I want two batteries to charge.
640726
I keep them charged even when storing, so you don't have to wait when you need them. If left for long periods without being used they will eventually lose their charge and have to be recharged prior to use anyway. NiCad batteries lose their charge over time as well, you may notice old batteries don't last as long as new ones. I think a quality charging station makes all the difference in the world.
1936949
I don't believe it will hurt the batteries, but in general with Li-ion batteries it is a good idea to remove them after they are charged. They will hold their charge for months after being re-charged, so why would you want them left in the charger? It is always safer to remove the batteries and unplug the charger.
263368
I always take the batteries out between uses. They will last for a number of uses. I use the energizer 377 batteries. Hope that helps,
1805086
I usually charge them overnight so I don't have an exact time to "full charge".You may have one or more wornout batteries.
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.
1381611
I take them off once charged. Probably not good to have a constant charge going in.