C&D Technologies RS-2044 msEndurII Series - Manual (Page 18)

RS02044/1114/CD 18 www.cdtechno.com
6.6 Electrical Connections
• Always use protective insulating equipment, such as gloves, shoes, eye and face protection.
Wrenches and other tools must be properly insulated.
• Observe local, state, and national electric codes at all times. Always work with the battery
ungrounded. Battery ground connections, if required, should be made last.
• To avoid working with high voltages, break the battery down into convenient lower-voltage
modules, equal to or less than 48-volts.
• Always maintain a firm grasp on tools and hardware when working on the battery. Dropped
hardware can cause a short circuit, possibly resulting in serious personal injury and/or damage
to the equipment.
• Before working on the battery, be sure to discharge static electricity that can build up on
tools or the technician by touching a grounded surface in the vicinity of the battery.
6.7 Terminal Plates
For reasons of safety, it is recommended that terminal plates be installed before connector installation as
described in section 6.9. Interconnect cells with the tin-plated (standard) copper connectors and stainless
steel hex head bolts and washers in accordance with the connection diagram supplied with each battery
shipment.
Prior to installation, lightly brush with a brass brush or Scotch brite™ type pad the battery terminals and
terminal plate contact surfaces. Then apply a thin coating of NO-OX-ID type grease. The ATP and ATLP
msEndur II series of battery terminals are made of a copper alloy with a thin lead coating. Terminal
plates are made of copper with a thin lead or tin coating. Once coated with protective NO-OX-ID type
grease, any “exposed”, “un-tinned” or “un-leaded” areas, no matter if from the factory or due to over
brushing, will be protected from oxidation by the grease thus not require reworking. Optional: preheat the
NO-OX-ID type grease and apply warm. After working with any lead component, wash your hands.
6.8 Numbering Cells
For ease of identification and for record keeping, all cells of a battery should be numbered. Plastic
peel-and-stick numbers are furnished in the accessories carton. Common practice is to start with “1” on
the cover of the incoming (+) positive terminal of the battery and follow the electrical circuit with
succeeding numbers on the cell covers.
6.9 Interconnection
Cell series connection is made from the negative post of one cell to the positive post of the next cell. It is
essential that the cell location and orientation match the included drawing. All connections must be
made as indicated on the drawing with no deviations. If no drawing is provided or it is lost, contact C&D
before making any connections.
The cells ship with NO-OX-ID grease applied by the factory to the terminals, however it may be
necessary to rework prior to connecting the cells with the supplied inter-cell connectors. Refer to Appendix
A for additional instructions for reapplying NO-OX-ID grease.
NOTE:
For application in which cables exit the post mounted terminal plate and are routed
horizontally across the top of the module; C&D recommends the use of the optional
horizontal top termination kit.