Wired Campers 20A DC-DC Battery To Battery B2B Charger

How does the unit work?

Very simply, the voltage range from a smart alternator can be very wide compared to a standard one. For example, around 12V and sometimes exceeding 15V, clearly neither of these are suitable for charging a leisure battery. 

What the DC-DC unit does it convert these voltages to a more stable and constant one to provide an efficient and reliable charge to your leisure battery. 

In addition the battery charging is provided in three stages - Bulk, Absorption, & Float (Depending on battery technology).

When using Lithium, the unit also has a reactivation feature for batteries in a low state of charge.

Will it work in my van?

Not only will this work with smart alternators, it'll also work with standard ones too. It'll provide a more stable and reliable charge to your leisure battery (extending life & available capacity) over a traditional voltage sensitive relay. It'll also allow you to run lithium battery technology.

Such vans as the below will normally have a smart alternator fitted, but if you're not sure, or your van isn't listed, please just drop us a message and we should be able to confirm its technology.

• Late Volkswagen Transporter T5.1
• Volkswagen Transporter T6
• Volkswagen Transporter T6.1
• Ford Transit Custom
• Late Ford Transit
• Late Mercedes Sprinter
• Late Volkswagen Crafter

What battery technology does it support?

You can use this DC-DC unit to charge the following battery types, you just need to select the correct settings on the dip switches.

• Sealed lead acid
• Flooded lead acid
• AGM
  
• Gel
• Lithium

Technical specification

• Transformation - 12V > 12V
• Input battery voltage - 8V > 16VDC
• Charging current - 20A
• Lead acid charging voltage - 13.2V > 14.7V
• Lithium charging voltage - 12.6V > 14.6V
• Efficiency - 90%