Jump Start Charger Battery to Battery Charger Module 1 (JSC1)

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Instruction Manual PDF

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DC Input Voltage DC Output Voltage Amps In Waterproof Size L x W x D mm Weight Kg Part Number
12 12/24 25 Yes 145 x 110 x 120 4 JSC1

Module 1 (below) fast / boost charges the auxiliary 12V/24V service batteries on the service vehicle when engine is running - this jump start and battery charging scheme is fully voltage regulated to prevent high voltages and so preventing any damage to the vehicle you are working on, for example, its ancillary equipment - such as ECUs. The unit can also continuously supply 24V to the lorry to charge the batteries. It can be left on indefinitely (as long as the van is running) as a power supply to allow long term heavy duty work to be carried out - tail lifts, etc. The service batteries are the donor batteries (below) in the jump starting process. These batteries, whether they be 12V or 24V, can be charged independently at 12V or 24V at about 25A (12V or 24V). Simply connect it between the vehicle’s starter battery and the donor battery (as depicted below). This system shall automatically do all the charging with no human interaction. Module 1 can be used for manual jump starting, where the operator wishes to manually choose between 12V and 24V when jumping the recipient battery (overleaf). This offers both jump start and fast charge. Module 1 can be used without Module 2, the auto select module. The service vehicle’s own electrical system is fully protected from back feeds from the 12/24V side and any surges which will take place in the service vehicle’s jump start system.

Allows you to charge the batteries in a 12V and/or 24V mode at 25A / 12V and 25A / 24V when the service vehicle’s engine is running.
   The charge is fast / boosted and is voltage regulated to prevent damage to any onboard ECU. This also allows smaller jump start batteries to be used as a 5-10 min connection to the charging system which will usually give sufficient charge to the batteries so that the jump start batteries are hardly used. In fact, with this system there is no real need for the batteries at all , as long as the batteries, to be jumped, are simply low and just need a fast charge.

This system suits regen. braking / smart alternators. It shall, therefore, complement modern Euro 5/6+ engines.

Freedom to maintain a 12V appliance battery for an inverter (example) with the convenience of having a 24V and 12V bank for jump starting.

Battery banks do not need to be identical. The 12V battery, for example, could be larger (200Ah+) to accommodate an inverter or other 12V appliances. The neighbouring battery (combined for 24V) could be smaller as this could be 60Ah  just needed for putting in series for the 24V jump.

No fear of centre tapped charging problems as both the 12V battery and 24V battery are charged independently at their own profile. Thus, automatically balancing the 24V bank.

The preset fast charging profile is: Bulk / absorption of 14.4V (28.8V) and a float voltage of 13.5V (27.0V).

You can also force the charger into a boosted voltage of 14.8V (29.6V) if optional 2 is use. For option 1 simply stop service engine an then restart and you will automatically be in fast charge mode to the jump start vehicle.

Both the appliance batteries and the batteries required to be jumped can be fast charged, provided the vehicle’s engine is running.