Price: USD 37
The "Apple" is a unique small PV charge/discharge in Sundaya product
range specially designed for very low cost applications based on SMD
technology. The Apple is extremely power efficient due to it very low
voltage drop over both input and output switching Mosfets, and a buzzer
to indicate that user is close to LVD (Low Voltage Disconnect). The
Apple also has an electronic master-switch or On/Off-switch, and a
clear state of charge indicator that also gives u a good indication
during charging.
Frequent cycling of the battery at a very low state of charge causes
fast deterioration of the battery due to sulfation and stratification.
The Apple does not allow the user to frequently operate the battery at
low state of charge.
The Apple is available in 3 standard charge/discharge current
capacities; 5, 10 and 15 Amperes. It's clean and round appearance make
the product look nice on your wall; with all cable connections nicely
covered at the backside of the unit.
Main Features:
| Mechanical: | |
| Enclosure Materials | ABS |
| Color | Green |
| Shape | Round |
| Size | 120mm x 40mm |
| Terminals | 8mm width Input terminal for battery (bottom side) |
| 8mm width Input terminal for solar panel (top side) | |
| 8mm width Output terminal for Load (top side) | |
| Electrical: | |
| Nominal operating Voltage | 12VDC |
| Power Consumption | 4 mA (standby) |
| Charge Disconnect Level | 14.50 +/- 0.01 V (at T=25°C) |
| Charge Reconnect Level | 13.85 +/- 0.10 V |
| Battery Temperature Compensation | -0.02 V / °C |
| Low Voltage Disconnect (LVD) | 11.60 +/- 0.01 V (at I = 0 A ) |
| Load Reconnect Voltage | 12.60 +/- 0.10 V |
| Low Voltage Buzzer warning level | 11.80 +/- 0.10 V |
| Discharge Current Compensation | -0.04 V / A |
| Boost Charge Level @25°C | 14.50V (with Temperature compensation -0.02V/ deg c) |
| PWM float Charge level | 14.10V (with Temperature compensation -0.02V/ deg c) |
| Ambient temperature allowed | |
| Operating temperature | -10°C to +55°C |
| Storage temperature | -40°C to +85°C |
| Enclosure protection class | IP 22 |
| Other functionality | - Electronic overload / short circuit protection, |
| - Reverse polarity protection | |
| - Surge protection | |
| Level Indicator | |
| Power consumption (on/off) | 0.1 A (max) / 0 A |
| Battery low Condition (0%) | 11.6 +/- 0.05 V |
| Battery Full Condition (100%) | 12.60 V +/- 0.10 V |
| Indicator for Battery State of Charge | (0 - 100%) LED bar (8 steps) with push button switch |
| Other indicators | - Indicator for Charging mode condition |
| - Indicator for Master Switch Off , Short/Overload condition |