RAYSTECH RT5427 User Manual page 15

If the battery needs to be stored over 3 months(From the date of shipment from the factory),
the battery would discharge at a minimum rate and capacity degrades depended on storage
time.
If the battery stored over 6 months(From the date of shipment from the factory), it is suggested
to connect the battery with inverter and commissioning the system.
5. Battery Installation
5.1 Checks before Installation
There are few things to check before installing the battery to ensure that it has no defects.
 Check the battery voltage using following instruction.
 Press and hold the panel button for 4s and release after two indicators turn on.
Measure the voltage at the terminal interface with a voltmeter. If the voltage is lower

than 48V, do not use the battery and contact customer service.
5.2 Battery Installation
There is a grounding icon on the front of the battery:
 For Parallel connection, the grounding cable is recommended to be installed.
5.2.1 Ground Installation
1. Place the battery in the right place (the details about installation position described in
chapter 4.2).
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