Thumper Battery Box + Extreme 120 AH AGM + VSR loom

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Packages: BB-Green+EXT120+VSR6mm
Sale price$619 Regular price$829


Blue Apple Thumper has introduced a whole new line of Heavy Duty Battery Boxes to its expanding range of power products.

This unique battery box design is packed with numerous features and outlet sockets to accommodate for every individual. Please feel free to browse our range for a battery box that will suit your application.

All Battery Box models include the following components:

1 x LCD Digital Volt meter gauge
Allows for accurate voltage reading of your battery (3volt ~ 30 Volts)

1 x Hold down push button switch
- used for Volt gauge

1 x 30 Amp Automatic reset circuit breaker
- Controls all outlet sockets inside the Battery Box

1 x 50 Amp Automatic reset circuit breaker
- Control both 50 Amp Anderson connector on front & rear

2 x 50 Amp Anderson connectors 
     (wired as both inlet or outlet)

- All internal cabling to allow you to simply connect straight to the battery terminals
Internal Dimensions of Battery Box

Length - 330mm

Width - 183mm

Height - 220mm

External Dimensions of Battery Box 

Length - 410mm

Width - 260mm

​Height - 280mm
* Dimensions includes all protruding outlet sockets * 


Choose between one of the following 4 x combinations of sockets
 4 x Cigarette
 2 x Cigarette

1 x Engel

1 x Dual USB

 1 x Cigarette

1 x Merit

1 x Engel socket

1 x Dual USB
 3 x Cigarette

1 x Dual USB

EXTREME 120 AH AGM Deep cycle 
If you are in the market for an Extreme deep cycle then look no further then the Redback Extreme AGM!

This heavy duty AGM battery is the perfect option for the use in Caravans, Motor homes, Camper trailers or even as a second under bonnet battery.

The Redback Extreme takes the technology of an AGM battery to a whole new level! Built with heavier internal lead plates, this battery is designed for continual discharge for heavy draw appliances. Its bonded element design allows for strength against corrugated or rough terrain, making it vibration resistant and the perfect choice for an off – road battery!

Whilst the Redback Extreme is not designed as a primary cranking battery (like the Thumper Redback hybrid), it does still hold the capacity to start up to a 10Lt diesel engine. The Extreme is designed as a secondary battery rather than a primary starting battery. The perfect combination for an under bonnet dual battery system would encompass the Thumper Redback (either 100 Ah or 120 Ah) as the starter battery and the Redback Extreme (either 100 Ah or 120 Ah) as the secondary battery.

Due to design of the heavier internal plates within the Extreme battery, it allows for rapid discharge and recharge of heavy draw appliances to be continually used.

Due to the internal characteristics of the battery, the Redback Extreme will allow for longer life over that of a standard AGM battery. 
  • 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
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
  • 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
​                                               VSR Vehicle charge system: 

The components of this kit includes: 

- 50 Amp Anderson connector

- Narva 140 Amp Voltage Sensitive Isolator (VSR) 

- 6mt 6mm automotive Twin Core cable (Option to upgrade to 8mm cable)

- 8mm automotive connecting cable with automatic reset 50 Amp Circuit breaker 
(250mm lead to connect circuit breaker to isolator and 600mm lead to connect Main battery to VSR) 

This kit is ideal to carry a realistic load of approx 50 Amps continuous

The Heavy Duty 140 Amp Charging system has been designed with a VSR dual battery isolator to charge batteries either in the rear of the vehicle or in the Caravan or Camper Trailer.

The Charging kit comprises of a 140 Amp Narva voltage sensitive dual battery isolator. This isolator will allow for the vehicle's main battery to reach a full charge of 13.3 Volts then will automatically switch the charge to the secondary battery. This isolator takes priority over charging the vehicle's main battery to ensure the main battery reaches and remains at 100% capacity. 

The kit is supplied with a heavy duty 8mm automotive connecting cable with in line automatic reset circuit breaker - rated to 50 Amps. 
This lead comprises of a 250mm length to connect circuit breaker to isolator and another 600mm length to connect Main battery to VSR.

The final component of the charging system is a 6mt continuous length of 8mm twin core (automotive) oxygen free cable with a 50 Amp Anderson connector. 
This lead is designed to run from the VSR (located under the bonnet of the vehicle near main battery's location) to either the rear of the vehicle (inside location) or to the towbar to continue to the Caravan or camper trailer to charge your secondary battery(s) system. (optional extra kit is available for the wiring of the caravan / camper trailer) 

Narva VSR140 Amp Isolator 

Narva’s new Voltage Sensitive Relays have been specifically designed for a wide variety of 12V & 24V applications.
The VSR units sense the input voltage generated and automatically connect / disconnect the appliance or circuit at pre-set voltages, eliminating the possibility of discharging the primary starting battery. 

Constructed with a weatherproof body (IP65) and durable silver tipped contacts, the VSR units also feature surge protection and a L.E.D indicator designed to alert the user when the unit is engaged. 

Narva’s VSR units are ideal for dual battery set-ups as they enable two batteries to be charged at the same time and then isolates the batteries from each other when the vehicle is turned off, ensuring your starting battery is always charged & ready to go.

• Surge protection

• Durable silver tipped contacts

• L.E.D indicator

• Weatherproof body (IP65)

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