Why does my new motor trend power house jump starter with air compressor not take a charge from the a.c. or d.c. charger?

Here are the steps to replace the charger for the Power On Board 450 amp VECO12POB jump starter:

1. Unplug the charger from the electrical outlet and remove it from the jump starter.
2. Locate the charging port on the jump starter and remove the cover.
3. Disconnect the old charger from the charging port by gently pulling it out.
4. Take the new charger and insert it into the charging port until it clicks into place.
5. Replace the charging port cover.
6. Plug the charger into an electrical outlet and charge the jump starter according to the instructions in the user manual.

Note: Be sure to use only the manufacturer-recommended charger for the Power On Board 450 amp VECO12POB jump starter. Using a different charger can damage the jump starter and void the warranty.

Should have been a patch cord that connects directly to the unit and to 110 volt plug for charging the unit back up. There's a built in convertor that does the re-charge. Find that cord or purchase one from where you got the unit.

The charger to a Jumpstart charges at a low rate (300mA to 500mA) and will not push enough current to start a car. Best to have Jumpstarts recharged every 6 months to be ready for emergency.

take the air compressor battery jump start device to any auto parts stores that sales the same device they will give you idea and show you how it works.

There is a battery inside which may need to be replaced. To check, run the compressor (it runs off
the battery) - if the compressor dies quickly, then the battery has failed to charge and would
need to be replaced. You may want to check your Warranty Management software (or
shoebox) to see if your Starter/Air Compressor is still under warranty - if so, replace it.
Duralast products are carried exclusively by AutoZone, Inc.
The Duralast web site: www.duralastparts.com is useless - it only shows automotive parts,
and I cannot find the product at www.autozone.com, so it seems that AutoZone fails to support this
product with replacement batteries or other replacement parts (or even an online Users manual).

My Duralast Gold Jump Starter Model BP-DLG will not take a charge. When it is plugged into the charger it shows fully charged; when I unplug it it goes dead, will not start and the red light shows. I have used it about 4 times in less than two years.

Need confirmation that the AC adaptor for Duralast jump start model BP-DLG is a 12volt 450ma. Is this correct or do I need something else?

where can I purchase a charger for my jumper

It should have an AC cord that plugs into the case, but if the battery inside is a lead acid type, it may have sulfated to the point that it won't accept charge. You may have to remove the battery from the case and try to charge it with a small external charger overnight. Hope this helps!

Manual can be found at
http://www.thorsentoolco.com/Links/PDFs/11-414.pdf