Valence RT - Battery Specifications

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: sales@valence.com
, Web site: www.valence.com
7.5 U-Charge
®
RT Battery Specifications
Specifications U1-12RTL U1-12RT U24-12RT U27-12RT
Voltage 12.8 V 12.8 V 12.8 V 12.8 V
Capacity (C/2) 24 Ah 40 Ah 100 Ah 130 Ah
Dimensions incl. terminals
(L x W x H)
197x130x182 mm
7.75x5.2x7.2 in
197x130x182
mm
7.75x5.2x7.2 in
260x173x225 mm
10.24x6.8x8.8 in
306x173x225
mm
12x6.8x8.8 in
BCI Group Number U1R U1R Group 24 Group 27
Weight (approximate) 4.1 kg / 9 lbs 6.1 kg / 13.4 lbs 15.8 kg / 34.8 lbs 19.5 kg / 43 lbs
Terminals, female-threaded 1/4-20 1/4-20 M8 x 1.25 M8 x 1.25
Specific energy 73 Wh/kg 84 Wh/kg 81 Wh/kg 85 Wh/kg
Energy density 66 Wh/l 110 Wh/l 126 Wh/l 140 Wh/l
Max. cont. current 30 A 30 A 30 A 30 A
Max 30-sec. pulse 80 A 80 A 80 A 80 A
Cut-off voltage
(approx)
10 V 10 V 10 V 10 V
Run-time @ 10A 144 min. 240 min. 600 min. 780 min.
Standard
Discharge
Run-time @ 30A
45 min. 80 min. 200 min. 260 min.
Charge voltage 14.6 V 14.6 V 14.6 V 14.6 V
Float 13.8 V 13.8 V 13.8 V 13.8 V
Max. cont. current 20 A 20 A 20 A 20 A
Standard
Charge
Charge time at max I.
1.5 hrs 2.5 hrs 6.5 hrs 8.5 hrs
DC internal resistance 22 mΩ 15 mΩ 6 mΩ 5 mΩ
Table 4: Battery Specifications
The battery can be in three modes; Active (charging, discharging, or communicating), Park
(sitting idle), or Shelf (manually put to sleep with RT Diagnostic Kit).
Please note the various discharge rates depending on which mode the battery resides.
Active Mode Park Mode Shelf Mode
< 4 Ah / week < 1.3Ah /week < 0.17 Ah / week
< 17 Ah / month < 5 Ah / month < 0.6 Ah / month
Table 5: Self Discharge Rates
If the batteries are not to be used within 1 month, we recommend that it be put into shelf mode or
be put on a float charger. If however, the battery has self discharged below 10V, refer to section
8 for instructions on how to recover from the deep discharged condition.