Wirthco battery doctor 20090 User Manual

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USER’S MANUAL
BATTERY ISOLATOR
WARNING
 PLEASE READ THESE INSTRUCTIONS COMPLETELY PRIOR TO INSTALLATION.
 BATTERIES PRODUCE EXPLOSIVE GASES - Ensure no sparks or flames are present.
 Wear eye protection.
 Vehicles must be in “NEUTRAL ”or “PARK ”, park brakes “ON ”
 Follow all vehicle manufacturers’ instructions.
 Beware of moving parts.
 Battery Isolators are designed for negative ground alternator systems with batteries of the
same nominal voltage.
 Batteries of differing voltages cannot be used.
FEATURES
 Easy to Install - The electronic isolator does not require any changes to the vehicle’s existing
wiring. It can be fitted to all 12V vehicle types.
 Priority Charging for Starting Battery - Ensures that the starting battery is fully charged before
connecting the auxiliary battery in parallel.
 Manual Override - If the starting battery is flattened and the auxiliary battery is charged, the
electronic isolator allows the batteries to be manually paralleled to jumpstart the vehicle.
 Over-Current Protection – Protects the Isolator and charging system from over current
damage, which could occur due to a short circuit in the wiring.
 Surge Protection - Provides surge protection for vehicles with electronic ignition/
management systems.
SPECIFICATIONS
PART NO.
#20090
#20092
VOLTAGE
12V
12V
CHARGING
CURRENT
75A/100A peak
125A/150A peak
CHARGE TYPE
Parallel
Parallel
CONTROL
Electronic
Electronic
MOUNTING
Surface/firewall/battery side
Surface/firewall/battery side
CURRENT DRAW
Charging 500mA
(Standby 30mA)
Charging 500mA
(Standby 30mA)
VOLTAGE DROP
None
None
SURGE
PROTECTION
Built in
Built in

Wirthco battery doctor 20090 Specifications

General

Brand	Wirthco
Model	battery doctor 20090
Category	Camera Accessories
Language	English

Summary

WARNING

General Safety and Handling

Critical safety advice, including handling explosive gases and eye protection.

System Compatibility and Requirements

Guidelines for negative ground systems, voltage matching, and vehicle conditions.

FEATURES

Ease of Installation and Vehicle Fitment

Highlights simple installation process and suitability for all 12V vehicles.

Priority Charging and Protection Systems

Details priority charging, manual override, over-current, and surge protection.

SPECIFICATIONS

Model #20090 and #20092 Comparison

Compares voltage, charging current, charge type, and control methods.

INSTALLATION – CONNECTION

Step-by-Step Wiring Instructions

Detailed procedure for connecting the battery isolator wiring to vehicle systems.

TESTING FOR NORMAL OPERATION

Installation Verification Procedure

Steps to confirm the isolator's correct installation and LED indicators.

OPERATION

Automatic Charging Functionality

Explanation of the automatic battery charging and disconnection process.

Manual Override for Jumpstarting

How to use the manual override feature to jumpstart a vehicle.

FREQUENTLY ASKED QUESTIONS

Product Durability and Vehicle Integration

Addresses waterproofing, electronic vehicle compatibility, and external charging.

System Disabling and Electrical Protection

Information on disabling the unit and the necessity of fuses for protection.