Stanley 300 amp jump-start system status lights don't work. only low stays on

I know how you feel because I had the same problem with mine until I read about the procedure.
Most of those Jump start chargers unfortunately require that you charge them when you buy it and then maintain the charge at least once a month.
There is usually a light on the charger to indicate that the charger is fully charged.

https://www.google.com/url?sa=t&rct=j&q=&esrc=s&source=web&cd=&cad=rja&uact=8&ved=2ahUKEwinj83Xy6ODAxUbJDQIHdnTCgcQFnoECBMQAQ&url=https%3A%2F%2Fwww.fixya.com%2Fsupport%2Ft12488256-stanley_300_amp_jump_start_system_lights&usg=AOvVaw0nZRIx7WJ53qbPpG9jwswh&opi=89978449

The alternator may be charging at 14v but if the battery cannot hold charge, then a low voltage issue may be present. If a jumpt start worked to get the vehicle going, then I'm assuming your battery is close to dead.

I doubt the service person did anything wrong. In today's cars with both engine and body computers, jump starting a car can be risky.
You're better off having the battery charged for an hour or so then trying to start it.
You may have to have the body computer scanned and possibly flashed to get everything working again. The body computer controls everything you mentioned. It could have lost some of the factory programming when the system was dead.

put a battery charger for a car on the + and - leads and this will recharge it if you do not have the correct power pack recharge transformer

Before the first use, the unit must be charged for 24 hours with a connection to an AC outlet (120V). Make sure that all of the switches are off. After that, stop charging when two red and one green LED Battery Status Indicators light.

If you are recharging the unit from a 12V battery, do not charge for more than 6 hours. (Check for a full charge by disconnecting the DC charging adapter and then press the Battery Power Level button.)

The manual for the Stanley J309 battery jump starter is available on the product page here: http://www.baccusglobal.com/stanley/j309.php . The direct link to the manual is http://www.baccusglobal.com/stanley/manuals/JUMPERS/J309%20MANUAL.pdf .

I hope this helps.

Cindy Wells

yes the yellow dial switch should be turned to on

Go to www.baccusglobal.com and link the Stanley link and then the "manuals" link and it should be there

not sure if you found this yet but it is actual made by Baccus Global under the stanley name.

http://www.baccusglobal.com/faq.php


Q: How do I know when my Jump Starter is fully charged?
A: All of the Baccus Global jump starters have a battery status indicator, units can have 2 - 4 LED indicators when all of them illuminate and the green one flashes the unit is fully charged.

Amazon.com: Customer Reviews: Black & Decker VEC010BD Start It 300 Amp ... Instructions note that units are already partially charged before ... Recent discussions in the Black & Decker VEC010BD Start It 300 Amp Jump Starter forum ...amazon.com/Black-Decker-VEC010BD-Start-Starter/.../B000E1HAIK - 235k - Cached