Small Charge Controller?

Are there any small 48v charge controllers that allow you to set your own voltage and don't cost as much as a PCM60X? I have 5x 100w panels from my original setup collecting dust that I'd like to try positioning at different angles to get some extra juice.

The MidNite Kid should do what you want, its not cheap but it'll last decades of abuse.

Thanks, but looking or cheap as this will probably be a temporary install for a few months and a system I tinker with. Nothing permanent.

xantrex c40 goes for about $150

does 125v panel in max

Float 50.0 - 58.0 VDC
Bulk 52.0 - 60.0 VDC
EQ +4 VDC above Bulk

You can change a resistor setting (outlined in manual) to add an additional 8v range above those above which is suitable for nicad or lithium charge ranges.

You can get slightly cheaper controllers, but this is a good all metal solid state array. Ive used both the c35 and c60 and they are pretty run of the mill pwm units, they operate like an mppt though, with the panel voltage just rising steadily in response to full charge voltage, they dont clumsily shunt on and off like cheaper pwm controllers or introduce a bunch of noise.

Update 170814: Wincong has brought out a new PWM controller that is more versatile, the SL03-4810A, about $30. Able to feed a wide array of battery technologies and configurations, it is a load (primarily area lighting) controller as well.
http://s.click.aliexpress.com/e/7yZjAU3

The lowest budget (under $7), highest versatility charge/load controller I know of is the new 3amp SX01-3A. For 3 to 12V lead-acid, gel, NiMH, and lithium configurations, this charger/load controller is apparently able to control four strings of colored LED lighting for various advertising lighting effects. I'm using them with some radar area lighting because the doppler radar units consume about 1,000X more current than the passive IR motion sensors (milliamps versus microamps).
http://s.click.aliexpress.com/e/jeYfMFY
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Would the MPT-7210A work in your application? $35 or so from Amazon, but manufactured in China.
https://www.google.com/search?q=MPT-7210A

"Working modes: MPPT and DC-DC selectable, MPPT for photovoltaic panels application and DC-DC for boost power supply.
Charging selection: applicable to lithium battery and accumulator cell.
Built-in 20 groups of data for user to set and store, support for multi-purpose.
Max. output power is 600W, best suitable for 100W-600W solar panel; the greater the power, the MPPT effect is more obvious.
With reverse charging protection: avoid the accumulator cell reversely charge the solar battery.
Reverse connecting protection: MOS reverse protection circuit for input and output end to effectively protect the controller and battery .
Overload protection: the controller will automatically cut off circuit if overload.
Wide application range: storage battery pack and lithium battery pack charging, home PV power system, solar streetlight, etc.

Specifications:
Material: Aluminum Alloy
Display: 160*128 TFT Color LCD Display
Input Voltage: DC 12-60V
Output Voltage: DC 15-90V, Adjustable to accommodate 24V/36V/48V/60V/72V Battery
Output Current: 0-10A Adjustable
Output Power: 20-600W
Working Modes: MPPT and DC-DC
Item Size: 131 * 96 * 55mm / 5.2 * 3.8 * 2.2in
Item Weight: 384g / 13.56oz
Package Size: 145 * 85 * 105mm / 5.7 * 3.3 * 4.1in
Package Weight: 480g / 17oz"