After battery used up, is it better to charge right away and store (possibly years), or to leave discharged and charge prior to using again?
640723
Sorry, I don't know. They came fully charged, so you might assume you and recharge them and store.
640724
AmazonBasics NiMH batteries should be stored in charged state. That is the whole point of using low-self-discharge batteries: charge them in advance, so they are ready whenever you need them. Ordinary NiMH cells should also be stored in charged state, but in this case the higher self-discharge rate will deplete them in a few months. If you store NiMH cells in depleted state for a few months, their capacities will drop the next time you charge them. That's why you need to run REFRESH (Discharge/Charge) operation on them multiple times, in order to recover the lost capacity.
640725
AmazonBasics NiMH batteries should be stored in charged state. That is the whole point of using low-self-discharge batteries: charge them in advance, so they are ready whenever you need them.Ordinary NiMH cells should also be stored in charged state, but in this case the higher self-discharge rate will deplete them in a few months. If you store NiMH cells in depleted state for a few months, their capacities will drop the next time you charge them. That's why you need to run REFRESH (Discharge/Charge) operation on them multiple times, in order to recover the lost capacity.
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.
640727
Pretty sure best is to have it stored around half charged not empty not fully charged between 50-75% same as how it comes from factory
2024309
Charge with battery on "OFF." B&D; recommends charging it after every use. Also, charge it once a month, whether you use it or not. I charge it on the 1st of the month, so not to forget to do it. Previous Jump Starters I've owned had self-destructed after the charge trickled out completely and could not be recharged. Do this regularly and the unit will last a long time.
771943
Best to turn it off then charge it....don't let battery drain totally. I often use it plugged in when it's fully charged.
517723
The battery is charged when the unit is running. My battery runs down over time so I usually have to pull start it the first time after prolonged storage. Once it has operated for about 1/2 hour or so, the battery seems to be fine.
1817389
As a general rule, I would try and charge the battery at least once every 30 days, but not more than 60. The longest I have let my battery be stored between uses is about two weeks, and the batteries never lost their charge. I really like these batteries as they last longer than stock batteries.
940252
I have a couple batteries that don't hold a charge long so I leave them in the charger and they usually get the job done before they lose the charge again. I always keep one in the charger.
1063224
For best performance operate on a full charge, so charge the battery in a way that's convenient and economical for you. Once fully charged the battery will stay fully charged for some time(2-3 weeks). After that batt is still @ 90 percent charged. Then plug charger/batt in outlet until full charge is indicated ( 1 min max). No need to leave charger/batt plugged in all the time. I mow first then trim...so I charge while mowing.
1680485
It needs to be charged a full 24 hours when you first get it. If you charge it less than that the first time, the charges won't last as long. A battery can have a memory. If you charge it a short time, you will only be able to use it for short times. Be patient and charge it for 24 hours first, after that keep it in the stand and it will stay charged. In my kit there's a bright yellow taped instruction on the box that held the charging base where it says to charge it a full 24 hours before using the first time or the warranty is void.
2165199
It would be best to. I have always liked to fully charge my batteries before I use them for the first time.
2244648
No, you should remove batteries when they are fully charged. The unit has built-in protection to prevent overcharging but why put it to the test continually? The risk of fire far exceeds the benefit of having a fully charged battery.
1491309
Most likely you have to charge the new battery first before you can use it. These type of rechargeable slowly discharge themselves even if it is not used. The fully charged battery usually depletes in several months. The new battery may or may not have some charge left, depending how long it has been on the shelf. Also, it is recommended to fully charge the new battery before the first use.
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.
1744616
Make sure you wait 15 minutes after using your battery before you charge it. If you charge it right after you use it they won't last long. You have to let them cool down.
1559210
I personally do the same thing for all Li-Ion batteries which is use the charge they have from factory until 0% then charge back up to 100% on an external charger and then use until 0% without charging in between to get a good idea on duration.
653109
I personally would charge it out of the device because in reality a chsrging device is man made and man is faulible a human makes mistake. I would take the time a charge the battery seperately.
1925148
10 times longer is not very useful.... If your old battery was severely crippled it could have been charging very quickly because it had so little capacity left. Fast charge & fast discharge is not what you want.I'd let it charge over night and see if it makes it through the next day. If the run time is long, do you really care how long it takes to charge? Just let it charge up overnight.
700000
That is what we did and battery would not charge after only a few months. I do not know if letting it completely discharge before recharging and not storing it in its built-in storage bracket will help. Electrolux is absolutely no help with this, nor with replacement parts or service.