Xantrex Technology Freedom SW 2000 user service Restrictions on Motor Size, Battery Banks

Battery Banks

As your power requirements increase, you may need to use more than one battery to obtain sufficient capacity. Batteries can be connected in parallel, in series, or in series-parallel to create higher capacity systems.

See “Cabling and Hook-up Configurations” on page 41 for more information about battery inter-connection schemes.

Mixing Batteries Batteries connected in parallel should be of the same type and amp-hour rating and from the same manufacturer.

It is not recommended to connect batteries of different types, amp-hour ratings or manufacturers. Improper charging and decreased battery life will result.

Battery Bank Sizing Worksheet

The following worksheet is a guide to help you determine your battery needs. Be generous in estimating the time for which you will run each of the loads to ensure sufficient battery capacity.

Battery Information

Restrictions on Motor Size

An appliance may require three to six times its normal running current in
order to start. The Freedom SW 2000 can handle surges to 4000 W for ten
seconds, which translates to a locked-rotor-amp rating of no more than 32
A. The locked rotor amp may be specified on the motor nameplate as		only.
“LRA” or “LRI”.
When considering appliances with large motors, follow these guidelines:		installers
•	Make sure that the motor’s LRA rating is no more than 32 A. The
	Freedom SW 2000 may not be able to start a motor with a higher LRA,
	and the Freedom SW 2000 will shut down if the attempt is made.
•	Make sure the battery bank, DC cables and DC fuses are capable of	qualified
	handling up to 450 A DC for ten seconds. A weaker circuit may not be
	able to provide sufficient power to the Freedom SW 2000 to allow the
	Freedom SW 2000 to start up the appliance. Again if the circuit cannot
	deliver the required current, the system may shut down or the fuse mayby
	open.	This guide for use

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