Victron's 15A BlueSolar MPPT charge controller is designed to maximise power output from small solar systems up to 400W (200W at 12V). The MPPT calculations and functionality of the BlueSolar 75/15 and 100/15 are significantly faster, producing up to 10% more than other MPPT controllers in changing weather conditions, such as a clouded sky. The two versions differ by the maximum input voltage from the solar panels; either 75V or 100V.
In addition to protecting the batteries from deep-discharge, by disconnecting any attached electrical devices, Victron have also integrated their 'Battery-Life' algorithm. Sometimes, due to heavy use or very poor weather, the solar panels may not provide enough power to fully recharge the batteries within a 24-hour period. In this case, if activated, the BlueSolar 75/15 and 100/15 will use stored information to slightly increase the battery disconnect voltage. This will continue until the batteries have reached 100% state of charge again. Thereafter, the battery disconnect voltage will be cycled so that a full recharge of the batteries is achieved about once a week.
Since many solar systems are outdoors, Victron have fully encapsulated the BlueSolar 75/15 and 100/15 electronics. This means that the charge controller is IP65 rated, so it can be used outside without any other protection from the weather.
| Battery voltage | 12/24 V Auto Select |
| Maximum battery current | 15A |
| Maximum PV power, 12V | 200 W (MPPT range 15 V to 70 V) |
| Maximum PV power, 24V | 400 W (MPPT range 30 V to 70 V) |
| Automatic load disconnect Yes, maximum load | 15A |
| Maximum PV open circuit voltage | 75V (75/15), 100V (100/15) |
| Peak efficiency | 98% |
| Self consumption | 10mA |
| Charge voltage 'absorption' | 14.4V / 28.8V |
| Charge voltage 'float' | 13.8V / 27.6V |
| Charge algorithm | multi-stage adaptive |
| Temperature compensation | -16 mV / °C resp. -32 mV / °C |
| Continuous/peak load current | 15A / 50A |
| Low voltage load disconnect | 11,1 V / 22,2 V or 11,8 V / 23,6 V or BatteryLife algorithm |
| Low voltage load reconnect | 13,1 V / 26,2 V or 14 V / 28 V or BatteryLife algorithm |
| Protection | Battery reverse polarity (fuse) |
| Output short circuit | |
| Over temperature | |
| Operating temperature | -30 to +60°C (full rated output up to 40°C) |
| Humidity | 100 %, non-condensing |
| Colour | Blue (RAL 5012) |
| Power terminals | 6 mm˛ / AWG10 |
| Protection category | IP65 (electronic components) |
| Weight 0,5 kg | 500g |
| Dimensions (h x w x d) | 100 x 105 x 40 mm |
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