Can't contact company. Bought a Dvd/Cd playerwith a Durabrand battery, model BAT-09 Dc 7.4V 2800mAh will not hold a charge. Player will play as long as plugged into a wall socket but otherwise battery is not any good. Player Description 9" Portable DVD Player DC 9V 20W. I bought from a Walmart Store in Laurel Maryland. Please direct me to any known source for help.