on but then turns to a flashing red light? Can
Black & Decker

I looked in the struction manual and then is no mention of a flashing red light.

How to Identify and Fix Common Gardening Problems ?

We provide a variety of viewpoints on how to identify and fix common gardening problems. Our sources include academic articles, blog posts, and personal essays from experienced gardeners :

If the battery is too hot or too cold, the LED will alternately blink red, fast and slow, one flash at each speed and repeat. Should you require a new charger, these can also be purchased through the Authorized Service Centers.
If your battery is not charging and the charger is rapid flashing and the battery is warm, it may be too hot– particularly after heavy or continued use. If so, please allow the battery to cool, then reinsert the battery on charger to try charging again.
Occasionally, the charger might show blinking red right to indicate bad batteries. There are several ways to restore batteries that cannot be charged by the charger. If the light blinks red within five seconds after battery insertion, then the battery voltage is too high.
If the power pack is run-down completely, it may take up to 6 hours to become fully charged. The red light is just a power indicator. The light will not go out, change color, or blink when the charging has been completed.
Generally, this occurs when the charger does not receive a signal from the batteries, in other words there is a break in the connection between the charger and batteries.
If the red battery light on your car`s dashboard starts blinking, then take it as a sign that your battery or charging system is not functioning properly. The battery warning light is in the shape of a battery symbol, usually with a plus and minus sign.
The reading for a fully charged battery should ideally be 12.6V +/- 0.2V. If it`s at 12.4V, it`s still considered a healthy charge but isn`t functioning optimally. If it`s 12.39V or less, the battery isn`t fully charged. If it`s over 12.9V, your battery likely has excessive voltage.
A1: Confirm you properly installed the included battery pack and battery door. A2: Confirm the Charging Stand is properly connected to a powered USB port. A3: Confirm you pushed down when placing the controller on the Charging Stand.
Some over-discharged batteries can be “boosted” to life again. Discard the pack if the voltage does not rise to a normal level within a minute while on boost. Do not boost lithium-based batteries back to life that have dwelled below 1.5V/cell for a week or longer.
The blinking green light indicates your unit is fully charged.
Can I leave Li-Ion batteries on the charger? Unless your tool instructions specifically say to store the battery on the charger, be sure to remove it after charging is complete. Overcharging can damage a battery and shorten its life, and not all chargers shut off automatically.
What is the expected run time of a fully charged battery on the 20 Volt Lithium powered String Trimmer? The run time of the trimmer is 10-15 minutes per battery on a fully charged battery.
Flashing power lamp indicates that NO CONNECTION is established between charger and battery and the unit has entered power save mode.
Fast flashing indicates a poor connection between the battery and charger or a problem with the battery pack. Refer to the rechargeable battery does not charge properly using the supplied battery charger article for details. Afterwards, try charging the battery again.
The batteries can be tested at one of our service centers. A service center list is available on line at blackanddecker.com or by calling our toll free number 1-800-544-6986. The batteries can also be tested using a digital multimeter.
The blinking green light indicates your unit is fully charged.

Discover Relevant Questions and Answers for Your Specific Issue

the most relevant questions and answers related to your specific issue

New unit only used maybe 6 hours.battery will not charge .when put on charger light goes red about 5 seconds and then goes green as if charged even when left on charger about an hour..then when go to trim grass runs about 7 seconds
ANSWER : No solution-I have the same exact proplem-faulty product-plan to send it back

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Why is the red light blinking on the charger??
ANSWER : Either the battery charger or the battery itself is bad. The charger can be easily tested with a volt meter to see if it is producing the correct voltage to charge the battery. The batttery voltage can also be checked the same way. Some other users have had this same issue.

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Ryobi 18v One+ battery won’t hold a charge. I have two of them and neither one will hold the charge. The charger is the Ryobi 18v charger plus. I have the same problem. As soon as I put the battery in the charger (even if it is dead) the “charging”, and the “fully charged” lights both come on. Even if I leave it for a day the battery will not charge.
ANSWER : If it’s both of them then i am thinking you have a faulty charger. i have seen mine do that, i got a new charger and it worked properly.

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The battery is not charging. I am getting a red blinking light.
ANSWER : That is the typical issue of dell batteries, They called back for several times.

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I am having problems with the battery on my worx gt trimmer. It will not stay charged even though the battery charger indicates a green light. What am I doing wrong? I put it back on he charger it will read a red light and then switch to green after a few seconds.
ANSWER : You can determine exactly what is going on by using a small handheld voltmeter. They are inexpensive, easy to use and come in very handy. Just test the output of the charger (after noting what the volt-output-rating is) by touching the leads of the meter to the terminals on the charger. If the charger is working at all, this is not a dangerous test. Conversely, test the output of your batteries by touching the leads of the voltmeter to the terminals on them. I suspect the charger is bad because after they overheat, they quit working and some don’t last very long. I don’t think YOU are doing anything wrong, just maybe the companies that manufacture these 2 electrical products are.

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Battery not charging. Light on charger is red for charge…it’s plugged in properly?????
ANSWER : Battery is bad.

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My battery is less than 1yearn and it is bad according to the blinking red light on the charger. can I get a free replacement battery/ the battery charged the first time I used it this spring. the second time I tried to charge it the rad light was blinking. please respond as soon as possible.
ANSWER : Usually batteries are not covered under a warranty, IF they worked in the beginning. It has a lot to do how it was stored in the winter, it could have been your problem and not the batteries.

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Battery will not charge red light steady and then blinks?
ANSWER : Sorry but you will need new batteries.

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