Smart Battery Charger 4+

Sears Brands Management Corporation

Designed for iPhone

    • 1.8 • 32 Ratings
    • Free

iPhone Screenshots


The DieHard Smart Battery Charger and Maintainer app easily syncs your DieHard Smart Charger to your smartphone or tablet, and conveniently monitors:

• AC connection (Power to the maintainer)
• ON/OFF charger status
• Clamps properly connected or reversed
• Battery charging status (%)
• Battery voltage (6V / 12V)
• Charger temperature
• Each stage of the charging process
• App only works with DieHard Smart Chargers.
• App requires access to a wireless internet network

Visit DieHard online at

What’s New

Version 0.3.3

Updated login user interface and cloud connectivity.

* Fixed an issue with dark mode

Ratings and Reviews

1.8 out of 5
32 Ratings

32 Ratings

Charliebrown0865 ,

Nothing but issues

Sometimes the wifi works sometimes it doesn’t. Lately it hasn’t been working at all. But since I bought this charger it was gimmicky and a let down. I’ve even rebooted my wifi thinking maybe it’s that but still nothing. And the wifi light doesn’t even come on.

J Masson ,

Greatest update

Thank you for the update. I was never able to connect since I bought the charger. Now I’m able to connect I love it. Thx again.

HenryCalderon ,

Lost remote monitoring

This has worked for over a year. Now it will not allow me to login and check charge status. I know sears is going bankrupt, but I didn’t expect their products to stop working. Still charges but I bought it for the remote status capabilities which does not seem to work anymore.

App Privacy

The developer, Sears Brands Management Corporation, has not provided details about its privacy practices and handling of data to Apple. For more information, see the developer’s privacy policy.

No Details Provided

The developer will be required to provide privacy details when they submit their next app update.

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