SPLIT CHARGING SYSTEMS

By “splitting” the charge output of your narrowboat charging device, more than one narrow boat battery bank can be recharged.

Recharging & discharging narrowboat batteries is important to prolong the life of your narrow boat batteries
Narrowboat batteries have a maximum charging life cycle
A battery charge monitor on a narrowboat

Split Charging Systems… The Basics!

Basic narrowboat split chargers are voltage sensing switches. The alternator feeds the starter battery with current via voltage.

When the narrow boat battery has reached what the sensor believes to be a constant voltage and is in very basic terms “charged” it allows the excess current carrying voltage to be diverted to the leisure bank.

The Electronic Bit…

Diodes used to be used widely to achieve this but engineers realised that whilst diodes are reliable they are inefficient. As we have seen, fractions of volts matter when battery charging so Voltage Sensing Relays are now commonly used as they introduce little or no volt drop into the circuit.

Top quality high amp voltage sensing relays are expensive but are proven to be reliable as technology advances. Best practice is to specify relays that have a continuous load rating higher than the output of your alternator/charger. Overloading the circuit would cause the relay to shut down, fail or possibly catch fire. Speak to your marine electrician or specialist electrical components supplier if you are in any way unsure what to fit.

Battery To Battery Chargers

Working in a similar way to the split charger, the battery to battery charger is an intelligent way of using excess charge voltage. More expensive than a relay or diode splitter, you get what you pay for. Three stage regulated charging is a feature of the top quality units.

Split Chargers

Not what you're looking for? Try some other items within this chapter...

crick boat show 2024

VISIT US AT THIS YEARS CRICK BOAT SHOW
(Saturday 25 to Monday 27 May 2024)

- WE'RE EXHIBITING INSIDE THE WW BOATING MARQUEE STAND WW80

Britain's biggest inland waterways show.

Advance tickets can be ordered by phone and online until 12midday on Friday 17 May 2024. If you are planning to purchase advance tickets, we recommend that you do so well before this deadline to allow time for postal delivery.
Children 16 and under – free entry Saturday, Sunday, Monday

Trade & Preview Day – Friday 24 May 2024
Get ahead and visit The Fit Out Pontoon before everyone else on Preview Day!
Preview Day tickets are strictly limited to a maximum of 1,000 pre-booked visitors and give entry to the Show from 10am – 6pm on Friday 24 May.

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