C&D Technologies RS-2046 C&D True Front Access TEL Series - Manual (Page 4)

III. Storage Instructions
Store batteries in a clean, dry, cool area away from radiant heat sources. Recharge batteries in storage at least
every 6 months or before their OCV declines to 12.48 VDC. Follow instructions as outlined in Section VI.
Freshening Charge.
IV. Installation Instructions-Required Installation Tools & Room
Equipment
At a minimum, the following tools and equipment are required to install VRLA batteries. A digital voltmeter,
insulated 7/16”, 10mm or 13mm socket wrench (depending on product model), inch pound torque wrench (160
in. lb. maximum ), rubber gloves, safety glasses for normal maintenance, full face shield for load testing,
optional plastic apron, portable eyewash, spill kit and fire extinguisher (Class C). If gas collection tubing is
connected, a knife or diagonal cutter will be needed to cut the inter-battery tubing to length.
Optional test equipment, depending on the type of checkout to be performed includes; micro-ohm meter,
ohmic test set, 100 amp momentary load test set or system load bank.
Typically for Telecom applications, four individual batteries are connected in series to form a higher voltage
string of batteries (e.g. 4 each 12 volt batteries connected in series form a 48VDC battery system). Refer to
Figure 3
for a 48 VDC series connected battery string using 12 volt front access batteries.
Two or more strings may be connected in parallel to increase the total capacity of the
system (e.g. two strings of 48 volt 115 ampere-hour batteries connected in parallel make a 48 volts 230
Amp hour battery. Refer to Figure 5 for parallel connected front access batteries.
Warranty Date Code C&D’s front access batteries date code is located on the front panel of the battery
as a four digit number, MM-YY
Front access batteries are heavy, typically over 100 pounds each. Make sure proper lifting and moving
arrangements are in place to safely handle this weight and have been considered before traveling to the
site. Do not attempt to lift batteries alone.
Figure 4 – Single -48 volt string configuration (typical)
RS02046/0514/CD 4 www.cdtechno.com