'MUst Know' Features And Facts; Ultra High Efficiency "Green" Battery Charger - Victron energy Blue Smart IP67 Manual

2. 'Must know' features and facts

2.1 Ultra high efficiency "green" battery charger

With up to 95% efficiency, these chargers generate up to four times
less heat when compared to the industry standard.
And once the battery is fully charged, power consumption reduces to
0.5 Watt, some five to ten times better than the industry standard.
2.2 Durable, safe and silent
- Low thermal stress on the electronic components.
- Protection against ingress of dust, water and chemicals.
- Protection against overheating: the output current will reduce as
temperature increases up to 60°C (140°F), but the charger will not
fail.
- The chargers are totally silent: no cooling fan or any other moving
parts.
2.3 Reverse polarity protected
In case of wrong polarity connection, the external ATO blade fuse will
blow. Check the polarity of the cable and check the correct value before
replacing the fuse.
2.4 Recovery function for fully discharged batteries
Most reverse polarity protected chargers will not recognize, and therefore
not recharge a battery which has been discharged to zero or nearly zero
Volts. The Blue Smart IP67 Charger however will attempt to recharge a
fully discharged battery with low current and resume normal charging
once sufficient voltage has developed across the battery terminals.
2.5 Temperature compensated charging
The optimal charge voltage of a lead-acid battery varies inversely with
temperature. The Blue Smart IP67 Charger measures ambient
temperature during the test phase and compensates for temperature
during the charge process. The temperature is measured again when the
charger is in low current mode during float or storage. Special settings
for a cold or hot environment are therefore not needed.
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