how do you tell when the battery is fully charged? there was no manual with this order! Can the batteries be left in the charger for extended periods
1985154
I normally use the charger that comes with the unit and it goes green indicating it is charging. When it is charged, the light goes out. The dual I just connected. The light goes on steady red as it charges. I will assume it will go off when charged. The transformer is larger than the single so there may be a problem with overcharging that does not occur with the single. I will know the final result if it does take an hour from the previous comment.
1985155
Your charger will blink while charging. Remove immediately. I damaged three of these batteries by leaving in charger. Charging should take about an hour. Black and Decker have information on their website.
1985156
Dan, there is no indicator of a full charge. I did leave the batteries in the charger all winter and they have worked fine this spring. My biggest complaint is the relatively short charge life of the batteries. Jim
1764519
I would charge it for a full 15 hours before using it. They usually come partially charged, so doing a full charge is the best way to be sure.
1347912
Hi the little charger that came with it... But it takes unusually long to charge... And if it doesn't charge it may need another battery... But it took a long time to charge
348320
I am not sure what the question means? It comes with a charger and 2 batteries and I usually charge the batteries fully and do not leave them in the charger once they are charged, but run the battery down to low charge before recharging. Battery life seems excellent. If you don't have the charger you did not get the complete package.
1627983
How long will the the battery charger stay charged after It is fully charged? Like 1 month, 2 months? Will it lose its charge after a prolonged period?
266997
Sometimes "New" batteries have sat on shelves for so long they have discharged completely. I advise getting Rechargeable batteries with a charger, remove and install when fully charged light indicates full charge. Otherwise, return the timer for a new one, could be a lemon, it happens. My cheap-o batteries from the dollar store barely lasted a month, but the rechargeables are still running after 3 months.
511187
Hi, I'm not sure but the battery is the easiest place to start. is it charged with the right charger ? It should take a while to charge the battery (generally a couple of hours) if it charges faster, it probably is the battery. you have to replace rechargeable batteries periodically.
1660943
I haven't used my new Charger long enough to answer correctly, but it has a box at the bottom that tells you when the battery is full charged, it may turn green, but I cant verify that yet. sorry.
2231299
The information I received stated that you can do just that. The battery is a lithium ion and when the charger has completely charged it a light indicates it is full and in standby. I have been using mine for months and love it. Hope this helps and remember amazon has free return policy if you're not happy.
236035
I would charge the battery first. I believe those are the instructions anyway. In fact, I believe there are specific charging procedures initially to get the best life out of the battery. If you continue to experience issues, I would contact the vendor/manufacturer.
567984
Red When chargingGreen when chargedNew batteries need to be charged when you get them.I have six batteries I just put them in the charger I can't remember how long it takes.. I think a few hours!?!?
687888
My battery works great, all day and I use it a lot. If you are sure that your battery charger is working, then you must have a bad battery. My battery came to me and had over half a charge when I got it. Exchange it and you will end up happy with the extended life battery.
1074684
I had issues with my battery because I kept it charged when not in use. I found out you should NOT keep it charged; rather keep it in the vac until it dies and then recharge, this will extend the life of the battery. I bought a new battery and that solved my problem. Good luck.
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".
1180890
Do you leave your battery on the charger when it's fully charged ? If yes its probably won't keep a charge and needs to be replaced .
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.
1241459
The charger has warning lights to show when the battery is charged or if it´s too hot and it should be removed from charger (or even when it is defected). In general, I keep it charging for 3-4 hours. It gets fully charged without overheating.