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This setup takes portability to the next level.
The Thumper DC-DC Battery Box can be charged in any vehicle on the market including 24v trucks.  With the Projecta IDC25 DC-DC/MPPT charger it has the ability to charge to 100% from vehicle.  In addition to this solar can be used to charge the battery by plugging a un-regulated solar panel into the solar input.
The Thumper Portable Battery Box setup can be used in any vehicle with the Projecta IDC25 DC-DC charger.
This setup includes the 6Mtr 8mm twin cable with Auto Circuit Breaker and 50Amp Anderson Plug.
It is a simple installation setup direct from the main battery positive and negative terminal with the auto circuit breaker normally mounted close to the main battery.
Once fitted the Projecta IDC25 is a easy plug and play setup.  The battery box can be transferred to another vehicle very easily.


This particular listing is for a battery box including: 

1 x Projecta IDC25 model 25Amp DC Battery charger (solar and vehicle compatible charge)

2 x Marine grade Cigarette type socket – rated to 16 Amps
Includes rubber cap design to protect all sockets

1 x Engel Type 2 Pin Plug

1 x Dual USB socket – rated to 2.5Amp (min rating)
– used to illuminate the Volt meter gauge and activate the USB

2 x 50 Amp Anderson connectors – Labelled INPUT/OUTPUT
(one fitted to front of box and one on rear)

1 x 50 Amp Anderson connectors – designed purely for solar panel input – labelled “Unregulated solar input”

1 x 50 Amp Anderson connectors – designed purely for vehicle (alternator) input – labelled “Alternator input”

– All internal cabling to allow you to simply connect straight to the battery terminals


Internal Dimensions of Battery Box
Length – 335mm
Width – 175mm
Height – 225mm


External Dimensions of Battery Box 
Length – 410mm
Width – 260mm
Height – 315mm
* Dimensions includes all protruding outlet sockets *

Also included: 

1 x 6mt length of 8mm twin core cable (8B&S) oxygen free cable (for vehicle charge line)

1 x 50Amp Automatic reset circuit breaker (for connection off main vehicle battery for the charge line)







Weight – 32.5kg
Length – 330mm
Height – 220mm
Width – 175mm
Year Warranty Weight – 32.5kg

  • Maintenance Free
  • Leak Proof
  • Rapid recharge rate due to a low internal resistance
  • Can reach full recharge within 2 – 3 hours from alternator
  • Excellent standby use
  • Excellent long term storage
  •  Heat resistant
  • Vibration resistant due to bonded element design
  • Completely sealed – can be mounted on any side
  • Can be mounted in sealed compartment
  • Under bonnet use
  • Superior discharge ability compared to a wet cell
  • High CA output
  • Up to 5 times faster recharge than a wet cell battery
  • Full 2 year manufacturer warranty!
  • Discharge Rate                  Ah Capacity

    20 Hour Rate                        128 Ah

    10 Hour Rate                        120 Ah

    5 Hour Rate                        104 Ah

    1 Hour Rate                          85 Ah

The Thumper Redback has a self discharge of less than 5 % per year
(wet cell batteries discharge approx 3 – 4 % per week)

Maximum discharge current – 1250 Amp 5 seconds

Maximum charging current – 36 Amps

Float charging voltage – 13.6 – 13.8 Volts @ 25⁰C

Heavy Duty ABS case suitable for under bonnet use


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