DATASHEET
LA-HR1235W
REV 01 · 2026-07 · EN
AGM BATTERY · SERIE LA-HR1235W
High-rate output
for demanding UPSs
12 V High Rate AGM battery (35 W at 15 min) with low internal resistance for high-demand UPSs.
SERIE  LA-HR1235W
AGM battery
TECHNOLOGY
Single model
LA-HR1235W
High Rate
SERIES
IDEAL FOR
High-demand UPS
Short discharges
Battery banks
15-min backup
QUICK DECISION
The essentials, at a glance
Key figures for the range
VOLTAGE
12 V
CAPACITY
9,0 Ah / 35 W
SERVICE LIFE
5 years (float)
MAX. DISCHARGE
140 A (5 s)
TECHNICAL ADVANTAGES
Key features
●  12 V, 35 W High Rate AGM battery for high-demand UPSs
●  5-year float service life at 25°C
●  Low internal resistance AGM technology for extra energy delivery
●  30% increase in power output with 15 minutes of backup time
●  Sealed, maintenance-free, highly reliable and with low self-discharge
●  Maximum discharge current of 140 A for 5 seconds
●  Maximum charging current of 2.7 A
●  6.3 mm F2 Faston terminal and ABS case with a flame-retardant option
●  Suitable for data centres, UPS/EPS, telecoms, alarms and security
2-year battery warranty
Free pickup & return service
Only applicable in the Iberian Peninsula
www.laparaups.com
contacto@laparaups.com
REV 01 · 2026-07 · EN
LA-HR1235W
01 / 02
Technical specifications
SERIE LA-HR1235W  |  AGM BATTERY
MODEL
LA-HR1235W
HIGH RATE AGM BATTERY
ModelLA-HR1235W
Nominal voltage12 V (6 cells per unit)
15-minute capacity35 W
Nominal capacity9,0 Ah
Float service life5 years at 25°C
CONSTRUCTION
Positive / negative plateLead dioxide / lead
Electrolyte / separatorSulphuric acid / glass fibre
Safety valve / terminalEPDM / copper
ContainerABS (UL94-HB) / flame-retardant ABS (UL94-V0)
ELECTRICAL DATA
Internal resistanceAprox. 16,7 mΩ a 25°C (±15%)
Maximum charging current2,7 A
Maximum discharge current140 A (5 s)
Short-circuit current430 A
CAPACITY AT 25°C
15-minute rate35,0 W
1-hour rate6,00 Ah
3-hour rate7,23 Ah
20-hour rate9,16 Ah
OPERATING TEMPERATURE
Nominal temperature25°C (77°F)
Discharge-15°C ~ 50°C
Charge / storage-15°C ~ 40°C
Capacity vs temperature (20 h)40°C: 102% · 25°C: 100% · 0°C: 85% · -15°C: 65%
CHARGING METHOD AT 25°C
Float charging13,5 ~ 13,8 VDC (-3 mV/celda/°C)
Equalisation charging14,1 ~ 14,4 VDC (-4 mV/celda/°C)
Cyclic use14,4 ~ 15,0 VDC (-5 mV/celda/°C)
PHYSICAL DATA
Dimensions, L x W x H (mm)151 x 65 x 94 (100 with terminal)
TerminalF2 (Faston 6,3 mm)
Approximate weight2,46 kg (±3%)
STANDARDS
Standards / certificationsIEC, BS, JIS and Eurobat · UL (MH62092) and CE
* Specifications subject to change without notice. Please refer to the applicable service conditions.
www.laparaups.com
contacto@laparaups.com
LA-HR1235W