The Easymax solar maximiser (or solar maximizer if your in the US), can be used to charge batteries, drives motors, or anything where a typical solar panel was used. It is very easy to set up, and will find you solar panels maximum power point at a push of a button.

It is rated at up to 15 watts. It will handle input currents up to 1.5 amps, or voltages up to 25 volts.



The documentation can be found here:
http://www.solarfreaks.com/easymax-documentation-t2.html

Hey Tony, you forgot to mention that it is an absolute kick arse design!

If ANYONE needs a custom high power MPPT, let me know.

Easymax III solar optimiser is now available.
This is the most efficient optimiser in the competition.

Measured efficiency below: With a 15 volt input at 6 watts.

Vout: 3 volts 87% efficient
Vout: 6 volts 94% efficient
Vout: 12volts 96% efficient

Very small footprint. Only 44mm x 29mm.
Very light weight SMD components.

Same I/V sweeping function as the original easymax.




This is also 40% smaller and 60% lighter.
can be purchased from http://www.dreamtec-rc.com.

Id like to know if I could buy a MPPT device for charging 126V nominal LA batteries. We used to have a product made by AERL that could do this but unfortunately the owner of the bus has gone to the everlasting solar laboratory. Id get a qty to justify the development. After that I could become your agent in AUS, as there is a need. Typically there will be a string of up to 6A input PV modules. Each maximiser could be rated at 1000W. I sometimes do a 252V battery system and would use 2 in series. reply to
dsh63475@bigpond.net.au

I am currently developing a high current maximiser with real time maximum power point tracking, which will handle up to 15amps at 100 volts. This mppt is designed with competition solar car racing in mind, and achieves extremely high efficiencies (theoretical maximum efficiency of 98%.), however, it can be implemented in standard solar setups due to the capability of connecting its output in series.

The design allows its output to be connected in series to obtain higher output voltages (up to a maximum of 1500volts if you like) for charging battery banks or connecting to inverters etc etc, however, the input voltage may not exceed 80 volts.

For your 126 volt system you could split the solar array into two 73volts systems, use two maximisers (with a 73volt input), then connect the outputs of the maximisers back in series to obtain the higher output voltages you require. You will require 4 maximisers for a 256 volt system.

Please let me know if this will suit your needs??

I can design a custom higher voltage maximiser if you require, however costs will rise due to the new design.