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4.5. Battery Orientation
Lithium batteries can be placed upright or on their sides.
4.6. Series or Parallel Connections
When connecting batteries in series or parallel, please follow these
guidelines:
(1) Make sure each battery is within 50mV (0.05V) of each other before
putting them in service. This will minimize the chance of imbalance
between batteries. If your batteries get out of balance, the voltage of any
battery is >50mV (0.05V) from another battery in the set, you should
charge each battery individually to rebalance.
(2) Size batteries in parallel accordingly: The capacity of batteries (rated
in amphours) when connected in parallel is increased by the multiple of
the batteries connected (2x, 3x, 4x, etc). However, the current ratings
(discharge and charge) for parallel batteries is only increased by 75% of
the multiple of the batteries connected (1.5x, 2.25x, 3x, etc).
(3) Batteries connected in series are best charged as individual batteries.
charging as a series bank can lead to imbalances and reduced runtime,
requiring an occasional individual balancing charge.
(4) Please reference RELiON’s LiFePO4 Charging Instructions document
(available on our website at relionbattery.com) for series and parallel
charging.
Specifications for Batteries in Parallel
Battery Quantity v 2 3 4
Voltage 12.8 12.8 12.8 12.8
Capacity (Ah) 100 200 300 400
Max Continuous Discharge
Current 100 150 225 300
Peak Discharge Current 200 300 450 600
Rec'd Charge Current 50 75 113 150
Max Charge Current 100 150 225 300
