DW911 charge light flashes when no there is no battery in radio

Flashing Red Light is not charging and solid red light mean charging the radio battery.

The charger which comes with the BPR40 is a rapid charger. (The book doesn't indicate if it is a 90 min. or 3 hour charger.) None-the-less, your battery is fine. When your charger is displaying green it will continue to trickle (slow) charge the battery to keep it topped off, so to speak. The first 3 charge cycles you should leave the battery on the charger the full recommended time. On most Motorola radios it is 10-12 hours. This will assure your battery is charged to full capacity and initiated properly. In most cases, your traditional charging of the radio should be overnight. When you go to bed, put the radio to bed on the charger.

FYI: All batteries come from the factory with some charge in them. It is a small test charge to assure the battery's funcationality.

If for some reason after the first week or so, you think your battery or charger is not functioning properly, contact the dealer where you purchased the unit. They can replace it under warranty.

Best regards.

More than likely your internal charger is faulty. Inside your inernal charger unit check the 2 anmp fuse which is white in colour.

Yes, the DeWalt radio will recharge the batteries, from the 12 Volt to 18 Volt versions. However, even with the radio plugged into an AC outlet, you have to either have the radio turned on, or have the unit in the AUX setting, in order for the batteries to get charged.

It typicaly takes about an hour +/- to fully charge a discharged battery. I normally don't put batteries directly into a charger right after they become discharged from being used in a tool, since they are still warm from use and charging them will generate more heat in the recharging
process.

Heat is the enemy of rechargeable batteries, so to get the longest working life out of your batteries, I'd let them cool down first, before recharging them, unless you absolutely need to use them right away, then go ahead and recharge them. If you can delay recharging them until they've cooled down, you'll get a more fuller recharge out of them.

Hope you find this Very Helpful and best regards!

Check your battery contacts on/in the radio, battery and charger. Clean with a pencil eraser if needed. If your charger will accommodate the battery alone, try charging the battery outside the radio. Does the charger's light (if any) come on and stay on when the battery/radio is attached? If so, your charger is working properly. If the light (if any) on the charger is flashing you may have a shorted or bad battery. Check your user guide to the radio/charger for more information. Finally, periodically a battery has too low of an initial factory charger to start charging on the charge immediately. Try placing the battery on the charger for 3 complete charge cycles, and see if it will then charge. If the battery is new, you might want to contact the vendor for a replacement.

If you are referring to a flashing yellow light on the charging base, this is an error code. Either the 1) battery is bad, 2) not making good contact in the charger, or 3) very very low on charge. The solution for this set of problems is as follows: 1) have the company you purchased them from replace them, 2) clean your contacts with a pencil eraser, 3) leave the battery on the charger with the yellow light flashing for an hour or two. If the battery is just very low on a charge, it will come back to life and the light will change to be constant. If the battery is bad or shorted out, the light will continue to flash and you will need to get with the vendor you purchased the batteries from.

Other things which come to mind are compatibility issues such as you are using a different battery chemistry than you had before. NiCd batteries can charge on either of the two chargers available for the P110 (slow rate or fast rate). However, NiMH and Li-Ion batteries require a fast rate charger.

If you are referring to a yellow blinking light on the radio while it is in the charger. You need to shut your radio off. Radios should always be turned off when charging. If the radio is left on you will never have a full charge. Also, if you inadvertently press the PTT while the radio is turned on, while on a charger, you can cause damage to the radio.

FYI: There is no light to show "out of range" on the radio, unless you are possibly using a trunking or repeater system. A blinking light on your radio indicates the radio is turned on and/or there is traffic on your frequency. Your charger base light can be red, yellow or green. This indicates the charge cycle status. Flashing most always means some type of error.

Best regards

You don't mention a make or model, so I can only give you general solutions. If the radio has a drop-in charger there may be a light to indicate charging. If the light comes on when the radio is in the charger, it's getting a charge. If you have a multimeter, DVM, or DC voltmeter you can check the battery voltage (charge) both before and after a charging cycle. You can also use the meter to confirm the output from the charger. If possible, replace the batteries with standard alkaline types and see if the radio works. I hope this info helps.

Bill B.
San Antonio

At that price point, these are completely disposable if giving problems. Otherwise, Contact your local retailer directly or online here: Support Cobra Electronics Corporation

http://www.dewaltservicenet.com/Products/DocumentView.aspx?productid=6159&typeId=6613&documentId=21603

This happened to me also. In the manual it says the flashing light means that the battery/charger needs to be cleaned, or if that doesn't work, it is dead. My husband called customer service and they actually sent us a new battery which we recieved within a few days. The number is 1 800 706 2534.