Performance may vary depending on, but not limited to cell usage and application.
If cell is used outside specifications, performance will diminish. All specifications
are subject to change without notice. All information provided herein is believed,
but not guaranteed, to be current and accurate. Copyright © 2005-2008 Valence
Technology, Inc.
Revision Date October 2008
12303 Technology Blvd., Suite 950, Austin, TX 78727, USA
Phone (888) VALENCE or +1 (512) 527-2900, Fax +1 (512) 527-2910
Unit 63 Mallusk Enterprise Park, Mallusk Drive, Newtownabbey, UK
Phone +44(0) 28 9084 5400, Fax +44(0)28 9083 8912
Email:
, Web site:
www.valence.com
present.
•
Use recommended torque ratings for the bolts.
o
U1- Torque provided hardware to 110 in-lbs maximum (12.4 Nm). Retorque on
occasion to 85 in-lbs (9.6 Nm)
o
U24, and U27- Torque provided hardware to 160 in-lbs maximum (18 Nm).
Retorque on occasion to125 in-lbs (14.1 Nm).
•
Proper thermal management will maximize life. This includes adequate air cooling.
10.
M
AINTENANCE AND
S
TORAGE
10.1 Visual Inspection
Please perform regular visual inspections of the battery chassis. If the battery chassis is found to
have dents, discoloration, or appears to be damaged in any way, DISCONTINUE USE
IMMEDIATELY. Please contact Valence Technology for assistance with evaluating the product for
continued usability.
10.2 Voltage Checking
The voltage of the battery can be monitored during normal operation or as part of standard tests
performed periodically to assess the health of the battery.
•
If any single battery's voltage is under 10V at room temperature, the battery has been
over-discharged or is self-discharging due to some defect or parasitic load. Discontinue
use until the fault can be corrected and the battery can be recharged.
10.3 Battery Storage
When disconnected from other batteries and the U-BDI, the battery will automatically go into a
park mode. In this state, the battery needs to be recharged at the following interval:
U1-12RTL U1-12RT U24-12RT U27-12RT
Recharge after
2 months
4 months
6 months
6 months
Table 7: Recharge Guidelines
•
However, if any battery is not going to be used within 6 months, we recommend that the
battery be put into shelf mode using the RT Diagnostic Kit. The shelf function instructs
the monitoring circuitry to shut down to maximize shelf life. In shelf mode, a 100% charged
battery could be stored safely for up to a year without the need for recharge, although
monthly voltage tests are recommended.
