FoilDrive In-line Battery Checker

$31.05
Inline Battery Checker Compatible with: 40V - MAX Power, MAX Sport, Slim Performance The Inline Battery Checker can be plugged in between your charger and your battery allowing you to...
Inline Battery Checker
Compatible with: 40V - MAX Power, MAX Sport, Slim Performance

The Inline Battery Checker can be plugged in between your charger and your battery allowing you to see an active read out of your batteries current state of charge.

It should be noted that while a charge is in progress, the battery checker will display a slightly higher reading than the actual value of the battery due to the current flowing into the battery during charge. To see the true state of charge, simply unplug the charger from the checker and wait 30 seconds for the reading to stabilize.

In addition, these have been programmed to display voltages. Simply single press the power button once plugged in and it will toggle the display. This is useful for tech heads, and can be used if we need to troubleshoot with you.


Orders are usually processed and shipped the same day the order is placed. We do our best to get items out as quickly as possible, and are centrally located in Texas so most items will be 2-day shipping even with ground service. Domestic orders to the continental USA are shipped via UPS unless it is a small item. Small items are shipped via USPS. Most International orders are shipped via DHL express. Tracking numbers are available via this site in your account order page. if you want expedited shipping just choose it from the menu or call us at 281-508-6485 for any shipping problems or concerns.