Can you leave batteries indefinitely on this charger [semi-intelligent] or will that diminish the life of the battery [dumb charger]? Thanks!
1261063
I cannot answer your question as I ordered this for a friend and not for myself.
1261064
Yes, as long as you use them once a month or more. Mine are working fine and that is what I do. When they are not in use during off seasons, you must unplug them from the charger and store them.
1261065
I leave the batteries charging all the time, except when I'm using the trimmer of course, because they take so long to charge. Have been doing this with two batteries for a year or so and they still seem to be holding a good charge.
1261066
According to the literature that came with my weed whacker it it best to keep the lithium batteries plugged in, the charger does a trickle charge as needed.
1261067
I leave my battery on the charger until I get ready to use it and the battery is always fresh, the charger cuts off when the battery is charged to the best of my knowledge.......
2190134
I cannot answer your question because I haven't tried it before. But according to the manual, it says when the battery is fully charged, the charger will change to trickle charging. Since the electric tooth brush which I am using now also uses trickling charging, and I leave it on the charger whenever I am not using it. I literally leave the electric tooth brush on the charger almost permanently. You may base on this to decide whether you can leave the batteries on the charger for a week or two.
1348156
You can leave the battery in your vehicle still connected to your battery cables; however, I bought two of these chargers, and they both died within a year. I bought Schumacher PS-1562A DSR ProSeries 1.5 Amp 6/12 Volt Automatic Battery Charger/Maintainer , and have used it many more times than the Tender model, and have had NO problems with it. It automatically detects whether the battery you hook it to is 6 or 12 volts- no need to do that yourself on a switch selector. Go with the Schumacher!
1147221
From what I read in the instructions, it was safe to leave it on the charger continuously. However the blue light is supposed to go off every so often, which mine does. So far I've had no issues with storing it that way.
1227801
Yes, to a point. While no damage is done to the charger or batteries outright there will be over a period of time be a shortened life of the batter itself. As with any rechargeable power source it is best to deplete it as low as you can before recharging. Leaving it constantly plugged in means continuous heat which shortens the life span of the battery.
1504677
With these type batteries, you will want to use them until they are fully dead before charging to get the most out of them. I would not store it on the charger it self. Any other way will be fine.
1018654
Many chargers auto set to these batteries. If you have a charger from years/decades ago that does not automatically switch off I would watch very carefully. You could overcharge and short the battery.
860794
In theory, the charger with which it comes includes an internal voltage-sensing cut-off switch: so the battery stops receiving charge current once it's capacity is filled. That said, it's never good practice to leave any battery on charge longer than necessary - especially LiPos. This generation of batteries are infinitely more performant than previous generations: yet they are also more delicate. They may swell and seemingly heat-up on use. Never start charging a cell that is even slightly hot - such as it may well be immediately after using it: allow a few minutes for it to cool. Be careful of shorting the connectors whilst storing during Travel... Isolate from potential sharp objects that could puncture the skin... (Keep away from pet's teeth..!!) If not using for some time, recharge to filled capacity and then use for 2 minutes prior to storage (80% full)... I store mine coddled in fine sand, three to a sardine-can sized old metal chewing tobacco tin: in the event of a fire, these cells burn at very high temperatures and need to be starved of all oxygen - and even then, the damage that can be caused in even a short time, may be significant... Bottom line : RESPECT the integrity of these cells and they will give great service.
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).
1254090
I don't leave mine plugged in and I found this on the Apple forum.. "Thanks to an intelligent power management system, the Apple Battery Charger uses less power once your batteries are fully charged, making it one of the most energy-efficient rechargeable battery solutions ever." However, for maximum life, you should not leave the batteries plugged in all the time." It doesn't take long for the batteries to charge fully and if you have an extra set charge them as soon as the "mouse batteries low" shows up on your screen and you should have no lag time.
1312800
A smart charger typically has a low trickle-charge current after charging is done. Ordinary NiMH cells typically self-discharge at about 1% per day. Some even faster than that. So it is a good idea to keep them in the charger, to make sure that they are still fully charged by the time you need them.With low-self-discharge (Pre-Charged) NiMH cells, this is not necessary. In fact, continuous trickle charging will probably reduce the battery lifespan in the long run. If the batteries are stored for a long time, just recharge them (using a smart charger) once every 6 month or so.
1983804
Store your batteries fully charged. Also, try to avoid letting lithium ion batteries (like the ones in cell phones) discharge completely after the initial 4-5 cycle "break in" period.. Repeatedly draining them all the way can shorten battery life. Most battery chargers have a protection circuit built in so leaving a battery in the charger past the time it is fully charged will not harm it.
60086
I havent had any issues with the charger draining the batteries Ive left it unpluged for 6 weeks and didn't lose a volt on my guage. You might want to check to see if anything else might be draining you batteries its uncommon for a charger to do that.
1671930
We have used these batteries for the last 25 years. We have two sets. My wife uses them for a Black and Decker 2 speed small vacuum sweeper that has not been made for over 20 years. She uses one set in the sweeper every morning the master bath. I have replaced the batteries once in all that time and one sits in the charger until the other set runs down. Simple answer is that it will not hurt the batteries to stay in the charger for a prolonged time.
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%
2109729
Like everything else, the chargers have a life span. But it's quite long. I have 4 of them and have used them constantly for three years. They're still working fine. Just make sure you recharge them when they are depleted. And don't use them until they are completely dead. When they start getting weak, exchange them for a freshly charged battery, and put the depleted one on the charger. If you use any rechargeable battery until it's totally dead, you will shorten their live span.
770555
This charger is quite smart. It knows when to stop charging. If the red light goes off after a few minutes, that means the battery in that charging channel is already fully charged. Do you have any reason to suspect that the battery is not fully charged? Only a dumb charger will continue to charge a battery for 6-8 hours even if the battery is already full.