Victron energy BlueSolar MPPT 75/15 User Manual

MPPT solar charger manual
BlueSolar MPPT 75/10 up to 100/20
Rev 05 - 09/2023
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Victron energy BlueSolar MPPT 75/15 Specifications

General

Maximum PV open circuit voltage	75V
Rated charge current	15A
Nominal battery voltage	12/24V Auto Select
Efficiency	98%
Maximum PV power (12V battery)	220W
Maximum PV power (24V battery)	440W
Self Consumption	10mA
Absorption Voltage	14.4V / 28.8V
Float Voltage	13.8V / 27.6V
Weight	0.5 kg
Dimensions	100 x 113 x 40 mm
Communication port	VE.Direct
Protection	PV reverse polarity
Temperature Compensation	-16 mV / °C
Operating Temperature	-30 to +60°C

Summary

Safety precautions

Features

Outstanding MPPT algorithm

Explanation of the MPPT tracking technology and its benefits.

BatteryLife

Explanation of the BatteryLife algorithm for battery lifespan optimization.

Installation

Battery

Battery connection and protection requirements, including fuse ratings.

PV array

Guidelines for connecting the PV array, including voltage and cell configurations.

Grounding

Proper grounding procedures for the solar charger and PV array.

Electrical connections

Step-by-step guide for making electrical connections.

Configuration and settings

Battery settings

Detailed explanation of battery-related settings like voltage and presets.

Load output settings

Configuration options for the load output operation modes.

Operation

Battery charging

Explanation of the battery charging process and parameters.

Lithium batteries

Recommended settings and behavior for Lithium Iron Phosphate batteries.

Troubleshooting

Solar charger is unresponsive

Procedure to troubleshoot an unresponsive solar charger.

Solar charger is off

Reasons why the solar charger might be off and how to diagnose.

PV voltage too low

Diagnosing issues when the PV voltage is too low for charging.

Batteries are not charged

Scenarios where the charger is active but batteries are not charging.

Battery not connected

Reasons and checks for a disconnected battery.

Reverse battery polarity

Identifying and rectifying reverse battery polarity connection issues.

Battery settings too low

How low battery settings can cause inadequate charging.

PV voltage too high

Diagnosing and resolving PV overvoltage errors.

Reverse PV polarity

Identifying and rectifying reverse PV polarity connection issues.

Batteries are undercharged

Reasons why batteries might be undercharged and how to check.

Insufficient solar supply

Diagnosing insufficient solar power reaching the panels.

DC load too high

Understanding how high DC loads affect battery charging.

Battery cable voltage drop

Checking for voltage drop in battery cables that affects charging.

Temperature compensation setting incorrect

How incorrect temperature compensation settings affect battery charging.

Batteries are overcharged

Risks and causes of overcharging batteries.

Battery voltage setting too high

Battery charge voltage settings too high

Solar charger not achieving full output

PV yield lower than expected

PV connections burned or melted

Load output issues

Load output not able to run load

Incorrect load output current reading