3. Handling and Installation
• Before connecting the battery, check that the battery voltage is ≥13.3V. Recharge as required.
• Ensure that the cable connecting the battery terminals is correctly sized and in length.
• Ensure that the bolts on the terminals are firmly fastened to the recommended torque of 10~12Nm to avoid
loosening during operation.
• Ensure the maximum output voltage of any charging device connected to the battery does not exceed
14.6V before connecting. Recommended charging voltage is 14.4V
• Side mounting with terminals on the upper side is acceptable but not recommended.
Where feasible, always install upright to optimise the performance under a dynamic condition
such as vibration.
• Fully charge each battery before use and if connecting them in series or parallel.
• When connecting in parallel, ensure the capacity and voltage between each battery is consistent.
Any variance should be below 100mV.
• Do not connect different batches, types, old or new batteries in series or parallel.
• To optimise batteries with balanced cells, it is advisable not to mix batteries from a different batch and
group for parallel connection. Each battery is labelled with a production batch code and serial number.
Some may be followed by a group code. The last 3 numeric numbers are designated as the group code
such as 001, 002… For example, LA120221J270443-001: LA120221J27 is the batch code; 0443 is the
serial number and 001 is the group code. For batteries in parallel connection, check that the batch code
and group code are the same.
• The battery can be connected in series up to 4 batteries, or in parallel up to 2 batteries. For example, four
12V100Ah batteries connected in series can create a 48V100Ah battery bank; and two batteries connected
in parallel can create a 12V200Ah battery bank.
• The total maximum configuration in a string of series and/or parallel (i.e., 4S2P) is 8 batteries (refer to the
individual product spec sheets).
• Due to small variations in new LFP battery capacity, LFP batteries may be slightly unbalanced when
unpacked for multiple connection in parallel. BMS interruption of charging is likely to occur during the initial
charging which is considered normal. If the charger trips out, reset the charger until charging continues
normally. For best result, each battery should be charged individually before being connected in series or
parallel. Contact Century Yuasa Batteries for any further assistance.
ADVANCED LiFePO4 TECHNOLOGY
LITHIUMLITHIUM PROPROLITHIUM PRO
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