Electronic Systems Support EFC52 SERIES, Installation, Operation And Maintenance Manual, Page: 11 / 32

MNL-000700
Rev B
9 www.ess.to
January 2017
7. Reconnect bus bars and/or cables to the battery. Make sure connections are properly torqued.
Torque values are provided on the battery label.
8. Reconnect the center jumper. Make sure connections are properly torqued. Torque values are
provided on the battery label.
9. Check voltage at terminal block.
10. Close breaker when ready. If your model has a disconnect with an exterior handle to the door, close
and latch the door first before closing the breaker.
9. WARRANTY RELATED MAINTENANCE
1. The purchaser (user) shall give freshening charges to the battery a minimum of every six (6) months for
Lead-Calcium batteries after shipment from the factory and until final installation. Refer to the installation
and maintenance instructions for maximum storage intervals at different environmental situations.
Extreme heat could cause more frequent freshing charges.
2. At least once every twelve (12) months, purchaser (user) must take readings and record
information per battery manufacturer’s installation/maintenance instructions. These records must be
maintained for warranty claim purposes. If warranty records are not kept, the warranty shall be null and
void.
3. Parallel strings should be limited to five (5) strings
4. Movement of batteries from original point of installation shall immediately void the product
warranty, except with the expressed written consent from ESS.
5. Any storage shall be in a dry area having ambient temperature of 77º F (25° C), or less, and
in accordance with battery manufacturer published installation, operation and maintenance instructions.
Failure to follow the battery manufacturer’s published guidelines and/or instructions may invalidate the
product warranty, at the sole discretion of ESS.
6. During service or extended storage, a battery system monitor is recommended to be used to record
temperatures, voltages, AC ripple, Float currents, Discharge and more to provide more accurate battery
and environmental data for warranty with battery manufacturer's claims.