The Duralast 750 Jump Starter is notoriously fickle when charging with the built in charger. I did a quick 'mod' to add an SAE connector that connects into a digital battery charging unit for quality charging and battery state maintenance when not in use. **This will break any warranty you have on the unit, and I am not responsible for any issues, failures, or destruction of the unit if you try this. Please take your time and be safe if you try it.

1. Duralast Jump Starter 900 Amp
2. Duralast Bp Dl900 Manual

Duralast Jump Starter 900 Amp

Duralast Bp Dl900 Manual

Here is my affiliate link to a great little charging unit: (Battery Tender Junior - Includes battery connector) Music by: daPlaque - GG.