I just bought a Black & Decker smart battery charger 2/8/12V for my car battery. It's connected but display flashes 8. What is the problem the buttons are unresponsive I doubt the battery is charging.

SOURCE: inovix imp-1112 mp3 player problems

Hi. I've had similar problems with the same model. 

Have you tried a Firmware re-install yet? If not, do that first using the CD supplied with it. 

Whilst it's plugged into your USB port, it'll hopefully also get a bit of a charge.  I notice on mine that the player will only charge from the USB port when the side on/off switch is in the 'on' (up) position, although there are times when the computer will 'reject' the player with the switch in this position - a series of 'ding-dongs' as it connects and disconnects from the USB port!

If this happens to you, just keep trying!  Come back to it each day, and try another Firmware re-load!

Mine took a few days, but then decided to come to life - weird machine!

SOURCE: Black and Decker Battery Charger

Fault Codes Meaning of Fault Code F01 Internal Shorted Cell Battery - Cannot be charged. Have battery checked by certified auto service center.
Excessive Load on Battery While Charging - Check load. F02 Bad Battery Connection - Check battery connection.
Battery Voltage Tool Low to Accept Charge - Have battery checked by certified auto service repair. F03 Internal Open Cell - Have battery checked by certified auto service center.
Sulfated Condition - Battery needs to be reconditioned. See manual. F04 Overtime Condition - Battery will not accept a charge after 18 hours of continous charging. Battery may have internal
damage. Have battery checked by certified auto center.

Battery Charge Rate is Set Too Low - Set charger to higher charge rate. See manual. F05 Overheated Condition - Disconnect charger and allow to cool for 30 minutes. Check for ample ventilation. F06 Reverse Polarity F07 Alternator Output is Out of Typical Operation Range

Operation Codes I=I=I=I Battery Reconditioning - (The letters DES will display for the first three seconds) I-I-I-I Alternator Voltage Check OOO Charger Standby FUL Battery Fully Charged

SOURCE: Black & Decker 24 volt battery will not hold a

Click on the link below and you will find replacments

You need to work out if the cost of two batteries is cheaper than a deal on a new drill pack


http://www.svcvacuum.com/black_and_decker/black_and_decker_battery.htm

SOURCE: charging Black and Decker Simple Start

okay people... this is a long one, but I just did it for two units that were having this problem and it worked both times.
The problem is the unit sat on the shelf and doesn't have enough power to operate its charging cycle.
Take an extension cord and plug in the outlet charger while you also plug it into your cigarette lighter... now attempt to charge it (you will hear the familiar alarm). Now, turn on the LED light... after a short time, turn off the light and the unit will begin to charge regularly. You can then use one of the chargers to finish the job.
By doing this you are providing plenty of power to the battery while the light drains it at a slower rate... kinda forcing the battery to condition/cycle; it's just allowing the battery to take the charge. Hope this helps.

SOURCE: Black and Decker battery charger does not work.

Black & decker chargers and bulbs for the light are JUNK..Don't waste your money on their products.I have 2 chargers for the 24 volt batts-1 is only 2 months old-It blew the fuse {soldered to the circuit board} I'm putting in a fuse holder but don't know the amp of the fuse-I'm starting with a 1 amp slo-blo and going up until it works or goes up in smoke..I had loads of problems with this B&D 3 piece set---It's only 1 year old..Total waste of money..