1956-2023 Exile BT-1 Digital Battery Monitor
The Exile BT-1 Digital Battery Monitor allows you to check your battery's status simply by plugging it in to your cigarette lighter. The BT-1's back-lighted LCD display shows you real time voltage status of your battery, and offers the added feature of charging your mobile device via the integrated USB port. Plug and display swivel to adjust viewing angle.
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