Battery Management System


  • 14 x 12VDC outputs
  • 35A maximum output current
  • Solar 28 Amp

This product is specifically designed for and exclusively supplied in a range of Jayco recreational vehicles.

SmartConnect Ready  

$ 950

Achieve the best charge for your battery with solar, DC and AC inputs

J35 Model C is a complete power and battery management system. It features an internal solar regulator and a multi-stage battery charger to ensure long battery life.

Use J35C solar battery management system to monitor the status of all types of lead acid batteries.

J35C allows you to charge the caravan battery to the optimal charge level from 230-240 Volt mains, your solar panel (38 Amp, or three panels 450W total), or from any auxiliary input, such as a power generator or your vehicle. The J35C System supports up to 450W of panels with open circuit voltage between 18 and 28 VDC. Solar regulator is limited to 27A input current or equivalent to 3 x 150W solar panel.

J35C solar battery management system will increase the life span of your battery thanks to the multiple battery protection features, such as low voltage disconnect, storage mode and multistage charging.  There are 14 outputs to connect your DC appliances, including hot water, water pump, lights, and many more. Built in electronic fuses protect the loads.

Built in the top of the range Jayco caravans, J35C can be paired with JHub, a portable tablet to wirelessly control and monitor caravan features.  JHub provides users with the detailed information on the power usage and the status of the caravan battery.

Upgrading your batteries to lithium? – You would need to upgrade your power management system to J35D, the system compatible with lithium batteries.

Product Specifications

Input Voltage Range: 240 VAC nominal, ± 10%, 50-60 Hz
Input Surge: < 40 A (cold start)
Output Current:  35A Continuous (load + battery current)

Factory Set Voltage:
13.65 V ±2% (Float voltage)
Output Ripple Voltage: < 150 mV
Over Voltage Protection: < 18 V
Over Current Protection: 35A to 38A (load + battery current)
Battery Current Limit: 15A max
Battery Connect: 10.8 ± 0.2 V

Low Voltage Disconnect:
10.8 ± 0.2 V
Battery Drain after LVD: < 7mA
Efficiency: > 83 %
Cooling Fan: Thermally controlled
Ambient: 0°C – 50°C
Communication: CAN bus
Weight: 2 kg
Standards: Safety: IEC60335-2-29, IEC62109-1,UL458, CSA, C22.2 No.107-1, EMC: CISPR 14, IEC61000-3-2, IEC61000-3-3 Approvals: RCM, UL, cUL