ENDEFRESUZB12.121 Installation ManualUZB12.121 Installationsanleitung
UZB12.121 Manuel d'installation
UZB12.121 Manual de instalación

Battery Replacement 12V, 12Ah
Ersatzbatterie 12V, 12AhBatterie de rechange 12V, 12Ah
Repuesto de batería 12V, 12Ah

Doc. ID: PU-359.100.13-xxZ (2019-01-10-MR1)

Product Description
The UZB12.121 is a non-spillable maintenance-free VRLA lead-acid battery withabsorbent glass mat (AGM) technology.

Intended Use
The battery is intended to be used as a battery replacement for DC-UPS systems.
Check the product datasheet of the DC-UPS or the battery module to confirm that it issuitable for the desired device.

Installation Instructions
Do not short-circuit the battery poles or power wires and always check correct battery
polarity.
Install the device in a cool area inside an enclosure providing protection againstelectrical, mechanical and fire hazards.
Do not cover or block the pressure release valves of the battery. Do not install thebattery with the valve pressure releases on the bottom side. Hydrogen gas can bereleased via pressure relief valves. It will form an explosive mixture in air when theconcentration exceeds 4% in volume. It is mandatory to ensure sufficient ventilation ofthe battery. The necessary ventilation and air flow must be calculated according to EN
50272-2.
The device is designed for pollution degree 2 areas in controlled environments. No
condensation or frost allowed.
Do not store batteries or battery modules at temperatures higher than 25°C orperformance and lifetime may change.
Before initial use, check the last charging which is marked on the battery. If it is older
than 9 month, replace the battery.
Do not store batteries longer than 9 months without charging or performance andlifetime may change. Every 9 months or whenever the open circuit voltage (OCV) falls
below 12.6V, the battery module should be charged. Apply a charging voltage of
13.8V (at 25°C) for 72 hours. Batteries with an OCV below 12V should be disposed.
Frequently charging below +5°C reduces the lifetime of the battery.

Technical Data
All values are typical figures unless otherwise noted.
Voltage

DC 12V

Nominal battery capacity

12Ah

Battery current

Max. 35A

Discharge current

Max. 3.5A

Charging currentRecommended charging
voltage

13.9V
13.75V
13.6V
13.45VAt +10°C
At +20°C
At +30°C
At +40°C

Self-discharge rate

3% / monthAt +20°C

Temperature range-10°C to +40°C

For charging-15°C to +50°C
Storage temperature range -20°C to +50°C

For discharging

Size (width x height x depth) 151x100x98mm
Weight
4200g / 9.26lb

Mechanical Dimensions

Instructions for disposal of batteries:
Always dispose batteries through a recycling organization. Optionally, batteries canbe returned to the supplier or the battery manufacturer. Batteries must be completely
discharged before recycling.
All dimension in mm

Headquarters: PULS GmbH, Elektrastr. 6, 81925 Munich, Germany, www.pulspower.com
Germany +49 89 9278 0France+33 478 668 941
Austria+43 2764 3213
Switzerland+41 56 450 18 10China+86 512 62881820
North America +1 630 587 9780
Singapore+65 6684 2310
United Kingdom +44 1525 841001
The information in this document is believed to be accurate and reliable and may change without notice.