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Model:

BMPPT250

250W Solar Charger

Booster Maximum Power Point Tracker

Operating Instructions

Please read these instructions before use

Unit 2, 110 Station Road, Seven Hills ,NSW,  2147, Australia

Wiring With Critical And Non Critical Loads:

Critical loads are generally light loads which are powered under any condition. Non critical loads  are 

loads which can be disconnected to ensure maximum on time for critical loads as well as to extend the 

life expectancy and reliability of the system. The non critical load can be set up as LVD, DD 6 hours or 
DD all night with the same REN configuration detailed earlier.

Grey

+

+

Critical Load

Non Critical

Load

Please ensure that your BMPPT has been correctly configured (REN & CHE settings) for 

your application. Refer to the Settings and Configurations section for more information. 

BMPPT250-R4

Summary of Contents for BMPPT250

Page 1: ...gious 2008 EDN Innovation award A simple compact low cost and highly efficient way to cycle charge 24V and 48V batteries from low voltage or parallel panels with built in Low Voltage Disconnect Load Remote Control or Dusk to Dawn mode BMPPT250 Unit BMPPT250 Specifications Efficiency Typical 95 Input Voltage 14V to 58V Output Voltage 24V 29V Output Voltage 48V 58V Input Power 250W Quiescent Current...

Page 2: ...8 Model BMPPT250 250W Solar Charger Booster Maximum Power Point Tracker Operating Instructions Please read these instructions before use Unit 2 110 Station Road Seven Hills NSW 2147 Australia BMPPT250 General Information This MPPT is designed to charge 24V or 48V rechargeable batteries systems suitable for cyclic charging at 29V and 58V respectively Custom voltages and times are possible but minim...

Page 3: ...ith a combination of the green and yellow wires and the internal links CHE and REN Always ensure that the CHE link is set for the Correct Battery Type The yellow and green wires are either left unconnected Ensure they are insulated from any other point or grounded shorted to the black wire To access the CHE 2 pin and REN 3pin links carefully remove the rear plastic cover CHE Linked Vented Batterie...

Page 4: ...riods of low light it is an approximation only to actual ambient light levels and if precise ambient light levels are required then light sensors must be used The maximum DDS load current is 10A continuous or 20A transients The DDS can be set to approx 6 hours or All Night actual night duration and up to 15 hours max 6 Hour DDS Set Up Grey CHE REN CHE REN 6 Hour DDS Set Up Sealed Battery 6 Hour DD...

Page 5: ... the load when the battery voltage drops below 0 85 of nominal voltage to protect the battery from damage The load reconnects when the battery voltage exceeds 0 9 of nominal voltage This feature will not trigger during short transients LVD load is 10A continuous or 20A transient Grey Please ensure that your BMPPT has been correctly configured REN CHE settings for your application Refer to the Sett...

Page 6: ...condition Non critical loads are loads which can be disconnected to ensure maximum on time for critical loads as well as to extend the life expectancy and reliability of the system The non critical load can be set up as LVD DD 6 hours or DD all night with the same REN configuration detailed earlier Grey Critical Load Non Critical Load Please ensure that your BMPPT has been correctly configured REN...

Page 7: ...y monitor system status Wiring With Load Remote Control This option enables the remote load connection and disconnection via the load remote control yellow wire When the yellow wire is grounded the load is disconnected otherwise the load is connected To configure this mode the green wire must be grounded This option overrides the LVD or DDS function but has the same load limitations of 10A continu...

Page 8: ...ake the system more tolerant to partial shading when compared to series panel connection Q What output can I expect from a 150 BMPPT The maximum bulk charge current with a 24V battery and 150W panel is approximately 6A so you can expect about 24AH per day which is a close to 60W load for about 10 hours Q Why are BMPPT used mainly in high power systems Until now and despite their overwhelming advan...

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