SD30CRMA CN3795 Lithium Battery Solar Charger

Product detailed description

This battery charger is designed for a wide range of applications and features MPPT (Maximum Power Point Tracking) to optimize charging from photovoltaic cells. It offers a complete charge controller for single or multi-cell lithium-ion, LiFePO4 or lithium-titanate batteries.

The charger can act as a power source if no battery is connected. The output voltage is set by the ADJ trimmer. Before connecting the battery, it is therefore necessary to first set the output voltage according to the battery used.

MPPT Specifications (Optional):

• MPPT 18V:
  • Input: DC 18-28V
  • Output: DC 1.2-17V adjustable (3.6V, 4.2V, 4.3V, 4.35V, 8.4V, 12.6V, 16.8V)
• MPPT 12V:
  • Input: DC 12-28V
  • Output: DC 1.2-11V adjustable (3.6V, 4.2V, 4.3V, 4.35V, 8.4V)
• MPPT 9V:
  • Input: DC 9-28V
  • Output: DC 1.2-8V adjustable (3.6V, 4.2V, 4.3V, 4.35V, 7.2V)
• MPPT disabled:
  • Input: DC 7-28V
  • Output: DC 1.2-21V adjustable (3.6V, 4.2V, 4.3V, 4.35V, 8.4V, 12.6V, 16.8V, 21V)

Specifications:

• Chip used: CN3795
• Max. charging current: 1A (can be changed by adjusting the Rcs value)
• Output voltage: 1.2-21V (depends on MPPT and trimmer position)
• Automatic conditioning of deeply discharged batteries
• Automatic reloading
• Charging status LED ("CR" LED)
• Battery overvoltage protection
• Operating temperature: -40°C to +85°C
• Dimensions: 45 x 20 x 15 mm
• Weight: 7.3 g

Delivery components:

• 1pc Solar Lithium Battery Charger SD30CRMA CN3795

Notes:

• This product is not a standalone functional unit and may require professional installation.
• Product images are for illustration purposes only and may sometimes differ from the actual appearance of the item. However, this does not change its basic properties.
• You must be careful when connecting two cells in parallel. Both cells must have the same voltage. If one cell has a lower voltage, it would discharge to the lowest possible discharge limit. If possible, both cells should have the same voltage. In this case, the tension will be balanced. If the voltage of the two cells is very different, the cell may overheat or worse. When charging two cells in parallel to this module, the charging current of each cell is half of the total charging current of the module, i.e. each cell has the same voltage level.