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TB_Manual_en.pdf     [rev. 003] 

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www.healtech-electronics.com 

 

 

ThunderBox 

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User Manual

 

Advanced power distribution module

 

 

Model: TB-U01, TB-U02 

 
 

 
 

 
 
 

 

1.

 

Foreword 

Congratulations on your purchase of a ThunderBox power distribution module. 
At HealTech Electronics Ltd. we are committed to producing the best aftermarket 
accessories for motorcycles and we would like to thank you for choosing this product. 
The ThunderBox simplifies and safeguards the process of connecting aftermarket electronic 
accessories 

(such as extra running lights, heated grips, GPS, phone charger, extra gauges 

and any other powered devices)

  to  your  vehicle.  It  acts  as an automatic and easy-to-

handle power distributor between the battery and the accessories. With the quick connect 

terminal blocks supplied, the installation process is quick and simple, requiring no tools 
nor specialist knowledge. 

 
 

2.

 

Features 

 

Compatibility 

Compatible with ALL vehicles using a 12V battery system 

(all battery types and capacities 

are supported), 

including all motorcycles, cars, ATVs/UTVs, kit cars and even lawnmower 

trucks. Available in two versions: 16A (TB-U01) and 2x 16A (TB-U02).

 

 
Awesome tech 

The TB constantly monitors the battery voltage, engine state (running/off) and the outputs, 
then switches the loads on/off automatically. The TB isolates/disables the power supply to 

the accessories until the engine is started and running smoothly, ensuring 100% battery 
power is always available for starting. This is a fully automated process, resulting in 
trouble-free starts and enhanced battery life. 

 

Quick and simple to use 

Connect the TB directly to the battery terminals and decide whether you want a fully 
automatic or ignition key controlled operation. Connect the auxiliary equipment fast, 

conveniently and safely to the tool-free splitter terminal blocks supplied. Just plug in the 
wires and you’re good to go!

 

 

Small but tough 

We use only the best components and technology to create products that can withstand 

the harshest environments. The TB has no moving parts, no relays and no fuses. Inside 
the rugged plastic case the circuitry is encased in epoxy resin, which makes it fully oil and 

water resistant, shock and vibration proof.

 

 

USB charger 

A weatherproof USB charger is available separately (part no.: TB-USB1) so that power to 

your USB devices will be turned on/off automatically and protected too. You may connect 
multiple USB chargers to one TB unit. 
 

Summary of Contents for ThunderBox TB-U01

Page 1: ... U01 and 2x 16A TB U02 Awesome tech The TB constantly monitors the battery voltage engine state running off and the outputs then switches the loads on off automatically The TB isolates disables the power supply to the accessories until the engine is started and running smoothly ensuring 100 battery power is always available for starting This is a fully automated process resulting in trouble free s...

Page 2: ...ition key switched 12V power source e g to the hot wire of the number plate light or running light The TB will switch the outputs ON OFF with a few seconds delay following the ignition key switch position This mode is recommended if you intend to connect a battery charger without disconnecting removing the battery from the bike Stay off mode The White control wire is connected to the TB s Black wi...

Page 3: ...r the fastening bolt Ensure the connections are clean uncorroded Tighten the bolt fully 4 Connect the TB Black wire ring terminal to the battery negative terminal 5 We recommend leaving the TB White wire disconnected This ensures the TB unit will work automatically refer to chapter 5 for operation modes Use the Ignition controlled mode if the automatic mode does not work properly on your bike or y...

Page 4: ...re now disabled Turn the ignition key OFF and correct the short circuit fault Reset the ThunderBox disconnect the TB s Red wire terminal from the battery for about 5 seconds then reconnect Periodic GREEN once in 3 seconds Output is turned off unit is in stand by After 10 minutes the LED is dimmed down and the unit goes to deep sleep After 24hrs of inactivity the TB LED turns completely OFF to furt...

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