Home > Battery-To-Battery Chargers
Product code: P01404
Note: Positive cables not included. Please download installation instructions (see link below) to determine correct cable size.
The Sterling 'Pro Batt Ultra' Waterproof 12V/12V 60A Battery-To-Battery charger offers rapid, multi-stage charging of leisure/auxiliary batteries in automotive, marine and recreational vehicle applications. Simple to install and configure, it offers a much deeper and faster re-charge than connecting directly to the alternator and is essential if you intend to re-charge a second battery in a modern vehicle where the introduction of 'smart' alternators has rendered traditional voltage sensitive relays (VSRs) redundant (please see download section below for more info). This charger is waterproof to IP68 with encapsulated electronics so is ideal for installation in engine compartments and other areas where moisture is present.
Smart alternators are ECU controlled and their voltage output varies continuously throughout a journey. Often the voltage is too low to provide any charge to the batteries via a VSR and at other times the voltage is very high (with regenerative braking systems) which can damage sealed, AGM & Gel batteries.
Sterling Battery-To-Battery chargers take the variable voltage output from the alternator and boost or reduce it to maintain a stable voltage output according to a multi-stage charging profile, providing a safe, controlled and fast charge for your auxiliary battery. Another benefit is that current flow is limited by the charger's current rating, eliminating potentially damaging high in-rush currents to deeply discharged batteries and allowing the use of smaller connecting cable compared with VSR split charge systems (which need to handle the max. alternator output). Importantly, once the engine is turned off the charger automatically isolates the starter and leisure batteries from each other to prevent accidental discharge.
Compatible with the following manufacturer's technologies plus many other Euro 5/6 + vehicles that use smart alternators & regenerative braking.
Designed in the UK
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