QUARTERLY BATTERY SYSTEM CHECKS -- record in a log book the following:
In addition to the monthly inspection the following checks should be completed quarterly.
• Record the charging voltage of each cell or multi-cell block in the battery system
• Record the Internal Resistance of each cell or multi-cell block
• Review the general condition or change in condition of the cells, racks, cables and
connectors
• Record temperature of electrolyte in pilot cells on each rack
ANNUAL BATTERY SYSTEM CHECKS -- record in a log book the following:
In addition to the quarterly inspection checks, perform the following checks annually.
• Record the specific gravity of each cell in the battery corrected for temperature.
• Check torque of all connections-batteries and racks.
• Check to ensure ventilation is okay.
10. STANDARD WARRANTY
20 YEAR LIMITED WARRANTY & ADJUSTMENT AGREEMENT
COVERING SBS “SR & STT” LEAD-ACID STATIONARY BATTERIES
Storage Battery Systems, Inc. (SBS) warrants that every SBS stationary battery sold as a new battery to an original user will be free from defects in material and workmanship
under normal and proper use, and maintained in accordance with SBS published and supplemental maintenance instructions.
SBS warrants that within 1 year of the date of shipment to the original purchaser, it will repair, F.O.B. its factory, or replace without charge F.O.B. its factory, a new battery or
any part of a new battery assembly which is proven to the satisfaction of SBS to have been defective at the time it was sold and which defect is found within 1 year from the
date of shipment to the original Purchaser provided that SBS is notified within 15 days of the said determination of the defect. Thereafter, and for a remaining period of 19
years, SBS agrees that if the battery fails to deliver 80% of its published rated capacity in Ampere Hours at the 8 hour rate of discharge when tested under supervision, SBS
may at its sole option, either repair the battery at its expense (excluding freight), or credit to the Purchaser (against the purchase of another SBS battery of equal or greater AH
capacity) an amount equal in dollars to the net purchase price of the original battery, multiplied by the months of undelivered life, divided by the total number of months of
expected life as out above.
No warranty expressed or implied applies to a battery which, after shipment from SBS has been altered, changed, repaired, treated in any manner by anyone other than SBS, or
service personal authorized by SBS or which has performed a duty cycle at any time improper for its size, design or capacity or in excess of the duty cycle agreed upon by SBS
and the Purchaser, or which has been subjected to misuse, ambient temperatures higher than 85°F*, extreme heat or cold, abuse or physical damage other than ordinary wear
and tear. The warranty only applies to batteries with regard to which a SBS representative has had right-of access for purposes of inspection, at reasonable hours and intervals.
The Purchaser shall indemnify and save harmless SBS from any claims and liabilities arising out of the use, maintenance, transportation or installation of any equipment
warranted hereunder.
This warranty is the only warranty either express, implied or statutory, under which the said battery is sold, the Company’s liability in connection with this transaction is expressly
limited to the repair, replacement, or credit of equivalent value expressed herein, and all other guarantees and warranties, statutory, legal or otherwise, except as may be
compulsory applicable, and any claim for damages, are hereby expressly waived by the Purchaser.
This warranty applies only to the original user of the battery. No warranty of any nature whatsoever applies to any other user or purchaser of the battery.
*Batteries used in high temperature application, 85°F or above, are warranted using the following formula which prorates the prorated warranty period.
The following is an example of the calculation of the Prorated Warranty (PW) of a battery operated under elevated temperature conditions that had a Design Life (DL) of 20
years at 77°F.
Prorated Warranty = derating factor at Operating Temperature (DT) x Design Life (DL)
PW= Design Life (Months)
Time@ T1 + Time@ T2 + Time@ T3 + Time@ T4
DT1 DT2 DT3 DT4
Operating Conditions: Temperature (°F) Months % of Life @ Temp. DT
77°or below 7 100
80°2 89
85°2 75
95°1 50
PW= 240 Months÷[(7 Months/1.00) + (2 Months/0.89) + (2 Months/0.75) + (1 Month/0.50)]
PW= 240 Months÷(7 Months + 2.25 Months + 2.67 Months + 2 Months)
PW= 240÷13.92= 17.241 years
Actual life expected (LA) = de-rating factor at operating temperature (DT) x design life (DL)
Prorated warranty=
Derating Factor
0%
10%
20%
30%
40%
50%
60%
70%
80%
90%
100%
70 75 80 85 90 95 100 105 110 115 120 125 130 135 140
Temperature (F)
% Rated Life
Specifications subject to change without notification.
