4.5.2 Terminal Preparation
Gently clean the contact surface of the terminals with a brass bristle brush or a Scotch Brite pad.
CAUTION! Use extreme care not to short the battery connections. VALEN Batteries are capable of
very high short circuit currents.
Before the final tightening of the connections, visually check that the connections are correct and in
the required sequence. See section 4.5.4 for the procedure on checking string voltage.
4.5.4 Voltage Checks
Visually check that all connections are properly made (positive to negative) and are tight. Measure
module voltage, check that this is between 11.8V-13.8V.
CAUTION! High voltage may be present.
If the voltage of a module is not between these values, contact your VALEN representative for
further instructions.
4.5.5 Battery to Charger Connection
Ensure that the charger is disconnected from the power line. If a battery disconnect is installed,
open it.
NOTE! The positive terminal of the battery bank should be connected to the positive terminal of
the charger and the negative terminal of the battery bank should be connected to the negative
terminal of the charger.
4.5.6 Paralleling of Batteries
When greater capacity is desired than available from a single cell or string, paralleling of batteries
becomes necessary. Batteries must be properly paralleled to get the best system performance and
longest battery life. The battery strings must be treated as equally as possible. This means equal
length cabling to a common collection point from the load cables, uniform temperature between the
strings and equal strings of batteries. Do not parallel other batteries with VALEN Batteries. To check
the proper paralleling of the strings, connect the strings in the final form and place a load on the
battery. Measure the load cable voltage drops. The voltage drops should match within 10%.
5.1 Charging the Valen ENLiFEN Batteries
The VALEN ENLiFEN batteries must be charged with a suitable battery charger or Solar Controller
that has a lithium charging profile. Charging voltages and charge current should be limited to that of
the BMS current rating, which can be found on the batteries specification sheet.
Section 5
Operation
7
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AUS
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