Battery to Battery DC-DC battery chargers

“Intelligent” battery chargers are great when you have access to mains hook-up but how do you keep your batteries properly charged when on the move?

Most motorhomes, boats and other vehicle with living accommodation use a simple split-charge relay or something similar. But, these operate just like an old-fashioned battery charger, measuring voltage alone and with no reference to what the leisure batteries actually need to perform at their best.
The answer: install a battery-to-battery charger, a remarkable device which - when the vehicle’s engine is running - constantly monitors both starter and auxiliary batteries.

It then takes spare energy (supplied by the alternator) from the starter battery and uses it to charge the auxiliary battery or batteries in the same way that a 230V “intelligent” charger would. This not only ensures that batteries are as fully charged as possible but also prolongs their working life.

We have a choice of models from different manufacturers to enable you to get exactly the right one for your vehicle or boat.

NOTE: All Votronic battery-to-battery chargers will trickle charge the starter battery at 2 Amps when the leisure battery is close to fully charged and there is a charge going in from solar panels or 240V hook-up. For this feature to work, the battery-to-battery charger must be connected to D+.

CTEK D250SE Dual DC-DC Charger

CTEK D250SE Dual DC-DC Charger

C8664B

  In Stock

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£242.75
£202.29 ex VAT
CTEK Smartpass 120S Power Manager

CTEK Smartpass 120S Power Manager

C8663B

  In Stock

Logo for CTEK
£249.00
£207.50 ex VAT
Votronic 3324 Battery-to-battery charger VCC 1212-30

Votronic 3324 Battery-to-battery charger VCC 1212-30

C85065

  In Stock

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£159.00
£132.50 ex VAT
Votronic 3326 Battery-to-battery charger VCC 1212-50

Votronic 3326 Battery-to-battery charger VCC 1212-50

C85066

  In Stock

Logo for Votronic
£260.04
£216.70 ex VAT
Votronic 3328 Battery-to-battery charger VCC 1212-70

Votronic 3328 Battery-to-battery charger VCC 1212-70

C85067

  In Stock

Logo for Votronic
£344.07
£286.73 ex VAT
Votronic 3329 Battery-to-battery charger VCC 1212-90

Votronic 3329 Battery-to-battery charger VCC 1212-90

C85068

  In Stock

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£395.81
£329.84 ex VAT
Votronic 3321 Battery-to-Battery Charger VCC 1212-20C

Votronic 3321 Battery-to-Battery Charger VCC 1212-20C

C85060A

  In Stock

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£149.00
£124.17 ex VAT
Power Service Gold 30-M Charger

Power Service Gold 30-M Charger

C8203

  More stock due shortly

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£349.00
£290.83 ex VAT
Request Stock Alert
Power Service Gold 40-M Charger

Power Service Gold 40-M Charger

C8202

  In Stock

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£399.00
£332.50 ex VAT
Votronic 3242 Battery Charger VBCS 30/20/250 Triple

Votronic 3242 Battery Charger VBCS 30/20/250 Triple

C85069

  In Stock

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£524.89
£437.41 ex VAT
Votronic 13242 Battery Charger VBCS 30/20/250 Triple-Marine

Votronic 13242 Battery Charger VBCS 30/20/250 Triple-Marine

C85069M

  In Stock

Logo for Votronic
£524.89
£437.41 ex VAT
Votronic 3244 Battery Charger VBCS 45/30/350 Triple

Votronic 3244 Battery Charger VBCS 45/30/350 Triple

C85070

  In Stock

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£647.67
£539.73 ex VAT
Votronic 3244 Battery Charger VBCS 45/30/350 Triple (Marine)

Votronic 3244 Battery Charger VBCS 45/30/350 Triple (Marine)

C85070A

Special Order

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£647.67
£539.73 ex VAT
To Special Order
Votronic 3246 Battery Charger VBCS 60/40/430 Triple

Votronic 3246 Battery Charger VBCS 60/40/430 Triple

C85071

  More stock due shortly

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£752.02
£626.68 ex VAT
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Votronic 13246 Battery Charger VBCS 60/40/430 Triple -Marine

Votronic 13246 Battery Charger VBCS 60/40/430 Triple -Marine

C85071A

Special Order

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£888.65
£740.54 ex VAT
To Special Order
EZA Energie MBB 1250

EZA Energie MBB 1250

C8133

  In Stock

Logo for LAVI
£289.00
£240.83 ex VAT
Power Service Plus 30 Charger

Power Service Plus 30 Charger

C8206

  In Stock

Logo for NDS
£255.20
£212.67 ex VAT
Votronic 3307 Battery-to-battery charger VCC 1212-45 Li

Votronic 3307 Battery-to-battery charger VCC 1212-45 Li

C85061A

Special Order

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POA
please call for details
To Special Order
Votronic 3311 Battery-to-battery charger VCC 1224-25 IUoU

Votronic 3311 Battery-to-battery charger VCC 1224-25 IUoU

C85062

Special Order

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£336.63
£280.53 ex VAT
To Special Order
Votronic 3313 Battery-to-battery charger VCC 2424-25 IUoU

Votronic 3313 Battery-to-battery charger VCC 2424-25 IUoU

C85063

Special Order

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£325.90
£271.58 ex VAT
To Special Order
Votronic 3314 Battery-to-battery charger VCC 2412-25 IUoU-Li

Votronic 3314 Battery-to-battery charger VCC 2412-25 IUoU-Li

C85064

Special Order

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£273.92
£228.27 ex VAT
To Special Order
Votronic 3308 Battery-to-battery charger VCC 1212-45 IUoU-Li

Votronic 3308 Battery-to-battery charger VCC 1212-45 IUoU-Li

C85061

  In Stock

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£326.65
£272.21 ex VAT
Votronic 3306 Battery-to-battery charger VCC 1212-25 IUoU-Li

Votronic 3306 Battery-to-battery charger VCC 1212-25 IUoU-Li

C85060

Special Order

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£259.91
£216.59 ex VAT
To Special Order
Votronic 3315 Battery-to-battery charger VCC 2412-45 IUoU-Li

Votronic 3315 Battery-to-battery charger VCC 2412-45 IUoU-Li

C8503

Special Order

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£339.27
£282.73 ex VAT
To Special Order
Votronic 0663 Battery Charger VAC 45-10/25 Triple

Votronic 0663 Battery Charger VAC 45-10/25 Triple

C85072

Special Order

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£596.82
£497.35 ex VAT
To Special Order
Votronic 0665 Battery Charger VAC 60-15/30 Triple

Votronic 0665 Battery Charger VAC 60-15/30 Triple

C85073

Special Order

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£715.43
£596.19 ex VAT
To Special Order
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