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Sterling Power 200A Bidirectional Battery to Battery Charger 12V to 12V – BB12200

£806.65 Exc. VAT

Bidirectional 200A battery to battery charger with two negative terminals to make a common negative install simpler and six simple to choose charge profiles.

This Battery to Battery Charger is Regenerative Braking / Smart Alternator Friendly – ideal for Euro 6 / 7+ engines.

Product Description

Sterling Power 200A Bidirectional Battery to Battery Charger 12V to 12V – BB12200

Bidirectional 200A battery to battery charger with two negative terminals to make a common negative install simpler and six simple to choose charge profiles.

This 12V to 12V battery to battery charger is a device typically installed between a starter battery (input) and a house / domestic / service battery (output). The BB12200 is designed to charge up your 12V domestic / service / auxiliary battery from the power generated from your alternator, whilst your engine is running. It is designed to work with vehicles (old / new) and (boats old / new). As this device is 200A rated on the input, we recommend running from an alternator 220A+. This BB charges both lead acid style batteries and lithium batteries.

Charges up leisure / service battery when driving / engine running. When engine has stopped and you have a charger / solar keeping your leisure battery topped up, it allows surplus current back to the starter battery to keep the starter battery topped up – this is a float voltage designed for topping up and maintaining, not fast charging. The reverse charging current is 20A, 40A, 60A dependent on model (see table below) – the charge voltage is 13.3V.

Battery to battery chargers can be used to optimise your alternator production in a similar manner to how the alternator to battery charger systems can – but in a current limiting manner, ensuring you don’t overwork your alternator even on a lithium system. Simply ensure your alternator output is connected to your starter battery directly, then install a battery to battery charger to charge the leisure system.

This Battery to Battery Charger is Regenerative Braking / Smart Alternator Friendly – ideal for Euro 6 / 7+ engines.

  • DC V (in): 12V
  • DC V (out): 12V
  • Current (A): 200A input
  • Weight (Kg): 2.2
  • L x W x D mm: 309 x 130 x 96
  • Code:  BB12200
  • 2 Year Warranty

Sterling’s range of Battery to Battery Chargers (B2Bs) has grown significantly over the past few years. This is in an effort to supplement the ever growing demand from the commercial vehicle, recreational vehicle and marine industries. The B2Bs have become extremely popular as they fast charge batteries as you cruise along without the need for complex wiring, touching your alternator, voiding the alternator’s warranty and tampering with the electronic control units (ECUs). You can provide the onboard batteries with a fast 4 stage charging profile with a very simple and speedy installation. All of the benefits of advanced charging without any of the draw backs. Simply connect the B2B between the battery being charged and the battery you wish to charge.

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