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Autel MaxiBAS BTMS OBDII memory saver cable with alligator clips and three status LEDs

TAURKENAM

TAURKENAM Autel MaxiBAS BTMS OBDII Memory Saver car electronics accessory

SKU CH-DSS9-9YC8Q

Polarity-protected cable connects a 12 Volt backup battery to the OBDII port, preserving vehicle codes and presets during battery replacement with surge protection and three status LEDs

  • Product typeType
  • Preserves vehicle codes and presets during battery swaps
  • Polarity-protected cable prevents reverse-connection damage
  • Powers onboard electronics via OBDII port while main battery is disconnected
  • Alligator clips connect easily to a 12 Volt backup battery
  • Three LEDs show power supply status at a glance

Purpose & User

The Autel MaxiBAS BTMS is a polarity-protected cable that plugs into the OBDII port and connects to a 12 Volt backup battery with alligator clips. It is designed for mechanics and vehicle owners who need to keep electronic presets and codes alive while the main battery is removed.

Interface Limits

Power reaches the vehicle computer only through the OBDII/EOBD port, so the accessory cannot support vehicles that lack this connector or that disable the port when the ignition is off. The three LEDs show supply status but do not report voltage or current values.

Installation & Common Issues

Clip the leads to a suitable 12 Volt source, insert the OBDII plug, and verify the LEDs indicate power before disconnecting the main battery. Reversed clips are blocked by the polarity protection, yet a weak or undersized backup battery will still cause data loss.

How it compares

Measured against everything we stock in Car Audio Accessories & Wiring, at today’s prices. Recalculated every night.

Price $68.99
Pricier than about 77% of the 2,768 comparable items (median $21.99).

Specifications

Product
Product typeType

Questions about this item

Does the Autel MaxiBAS BTMS work with a standard 12 volt backup battery?

Yes, the cable attaches to a 12 volt backup battery using the alligator clips to supply power through the OBDII port while the main battery is disconnected.

Will this memory saver keep my radio presets and fault codes alive during a battery swap?

It powers the vehicle computer through the OBDII port, preserving codes and electronic presets so re-coding is not required after the battery change.

What does the three-LED display tell me while the unit is connected?

The LEDs show the power supply status, letting you confirm that the backup battery is correctly connected and delivering power to the vehicle electronics.

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