Renogy MPPT Series - Technical Specifications; Electrical Parameters; Battery Parameters

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7. Tec hni ca l S pec if icati ons
Electrical Parameters
Description
Parameter
Nominal System Voltage
12VDC/24VDC Auto recognition
Rated Charge Current
40A
Rated Discharge Current
20A
Maximum Battery Voltage
32V
Max. Solar Input Voltage*
100VDC
Max. PV Input Power
500W (12V), 1000W (24V)
Self-consumption**
<10mA (24V)
Charge Circuit Voltage Drop
≤ 0.26V
Discharge Circuit Voltage Drop
≤ 0.15V
Communication
TTL232 / 8 pin RJ45
Table 7-1 Electrical Parameters
*Array voltage should never exceed maximum PV input voltage. Refer to the solar module
documentation to determine the highest expected array V
oc
(Open Circuit Voltage) as defined by the
lowest expected ambient temperature for the system location.
**Charging & discharging circuit closed, LED digital display OFF, remote meter MT-5 disconnected.
Battery Parameters (Temp: 25°C)
Control Parameter
Battery Charging setting
Gel
Sealed
Flooded
High Volt Disconnect
16.0V; x2/24V
16.0V; x2/24V
16.0V; x2/24V
Charging Limit Voltage
15.5V; x2/24V
15.5V; x2/24V
15.5V; x2/24V
Over Voltage Reconnect
15.0V; x2/24V
15.0V; x2/24V
15.0V; x2/24V
Equalization Voltage
---
14.6V; x2/24V
14.8V; x2/24V
Boost Voltage
14.2V; x2/24V
14.4V; x2/24V
14.6V; x2/24V
Float Voltage
13.8V; x2/24V
13.8V; x2/24V
13.8V; x2/24V
Boost Return Voltage
13.2V; x2/24V
13.2V; x2/24V
13.2V; x2/24V
Low Voltage Reconnect
12.6V; x2/24V
12.6V; x2/24V
12.6V; x2/24V
Under Voltage Recover
12.2V; x2/24V
12.2V; x2/24V
12.2V; x2/24V
Under Voltage Warning
12.0V; x2/24V
12.0V; x2/24V
12.0V; x2/24V
Low Voltage Disconnect
11.1V; x2/24V
11.1V; x2/24V
11.1V; x2/24V
Discharging Limits Voltage
10.8V; x2/24V
10.8V; x2/24V
10.8V; x2/24V
Equalize Duration
---
2 hours
2 hours
Boost Duration
2 hours
2 hours
2 hours
Table 7-2 Battery Parameters