SmartSolar MPPT Manual
Table Of Contents
- MPPT solar charger manual
- Table of Contents
- 1. Safety precautions
- 2. Introduction
- 3. Features
- 4. Installation
- 5. Configuration and settings
- 6. Operation
- 7. Monitoring
- 8. Warranty
- 9. Troubleshooting and Support
- 9.1. The controller is not operational
- 9.2. Batteries are not charged
- 9.3. Batteries are undercharged
- 9.3.1. Too much DC load
- 9.3.2. Battery charge voltages are too low
- 9.3.3. The battery is almost full
- 9.3.4. Battery cable voltage drop
- 9.3.5. Temperature difference between solar charger and battery
- 9.3.6. Insufficient solar
- 9.3.7. Wrong temperature compensation setting
- 9.3.8. Battery charge current too low
- 9.4. Batteries are overcharged
- 9.5. Solar issues
- 9.5.1. PV reverse current too high
- 9.5.2. PV yield less than expected
- 9.5.3. Full rated output not reached
- 9.5.4. Max PV output power relates to battery voltage
- 9.5.5. Mixed PV panel types
- 9.5.6. PV connections burned or melted
- 9.5.7. MC4 connectors wrongly connected
- 9.5.8. Optimisers cannot be used
- 9.5.9. Earth fault detection missing
- 9.5.10. Ground current
- 9.6. Communication issues
- 9.7. Settings or firmware issues
- 9.8. Operation issues
- 10. Technical specifications
- 11. Appendix
2. Introduction
The Victron Energy SmartSolar charge controller is an ultra fast Maximum Power Point Tracking (MPPT) solar charger with an
outstanding conversion efficiency and is suitable for a wide range of battery and PV voltages.
2.1. Battery voltage, PV voltage and current rating
The solar charger can charge a lower nominal-voltage battery from a higher nominal voltage PV array. The controller will
automatically adjust to the battery voltage and will charge the battery with a current up to its rated current.
The product name of the solar charger incorporates the maximum PV voltage and the maximum battery charge current.
For example: A 150/45 model has a maximum PV voltage of 150V and can charge the battery with a maximum of 45A.
The table below indicates the maximum PV voltage and maximum battery charge current of the solar chargers that are covered
by this manual:
Solar charger model Maximum PV voltage Maximum battery charge current Suitable battery voltages
MPPT 150/35 150V 35A 12, 24, 36 and 48V
MPPT 150/45 150V 45A 12, 24, 36 and 48V
MPPT solar charger manual
Page 3 Introduction