
SUNSYNK L5.1 | User Manual5
It is crucial and necessary to read the user manual carefully (in the accessories) before installing or using
the SUNSYNK-L5.1 battery. Failure to do so or to follow any of the instructions or warnings in this docu-
ment can result in electrical shock, serious injury, death, or damage to the battery, potentially rendering
it inoperable.
It is required to charge the battery every six months, and the SOC should be no less than 50% in case it
is stored for a long time.
The battery needs to be recharged within 48 hours after being fully discharged.
Do not expose the cable outside.
All the battery terminals must be disconnected before starting the maintenance.
Please, contact the supplier within 24 hours if something abnormal happens.
Do not use cleaning solvents to clean the battery.
Do not expose the battery to ammable or harsh chemicals or vapours.
Do not paint any part of the battery, including any internal or external components.
Do not connect the battery with PV solar panel wiring directly.
The warranty claims are excluded for direct or indirect damage due to the items above.
Any foreign object is prohibited from inserting into any part of the battery.
After unpacking, please, rst check the product and packing list. Please, get in touch with the local
retailer if some product is damaged or lacks parts.
Before installation, cut o the grid power and ensure the battery is in the turned-o mode.
Wiring must be correct, do not mistake the positive and negative cables, and ensure there is no short
circuit with the external device.
It is prohibited to connect the battery and AC power directly.
The battery system must be well grounded, and the resistance must be less than 1Ω.
Please ensure the electrical parameters of the battery system are compatible with related equipment.
Keep the battery away from water and re.
2. SAFETY
Sunsynk's products are designed with full consideration for safety. However, all electrical appliances can be
dangerous if used inappropriately; they can cause a re or electric shock, leading to severe injury or death.
For your protection, please read these safety precautions thoroughly.
2.1. GeneralSafety
2.2. ProceduresandPrecautionsBeforeConnecting
Cut o the power and completely shut down the battery before moving or repairing the battery.
Connecting the SUNSYNK-L5.1 battery with a dierent type of battery is prohibited.
2.3. SafetyPrecautionsWhileUsing