PowerFilm Solar Inc


powerboost charge controller


The PowerBoost charge controller, developed specifically for PowerFilm’s semi-flexible crystalline and Rollable/Foldable Flexible a-Si panels, efficiently charges and maintains the health of lead-acid, Lithium-Ion, and other rechargeable battery systems. 


The proprietary, integrated PowerBoost charge controller provides a steady, regulated output to the connected battery or device (some battery banks are not compatible with panels that feature a PowerBoost charge controller). Different variations are available designed for specific panel sizes, output voltages, or battery configurations. The PowerBoost is compatible with low voltage inputs, allowing smaller panels to be built with uncut Sun Power Cells. This maintains high conversion efficiency of over 22%, while the cut cells used in traditional panels may drop to 17% or lower. Using Fixed Power Point Tracking, the PowerBoost has the performance of an MPPT controller while being a more cost-effective solution. Our charge controllers are specifically designed for use with solar and will not overcharge and reduce the life of the battery, a common problem with off-the-shelf PWM and MPPT three-stage charge controllers. (link to blog post on charge controllers).



Battery Charging Features

  • Constant Current / Constant Float Voltage

  • Maintains Battery at Safe Level

  • Prevents Overcharging (unlike 3 stage charge controllers connected to solar)

Supports Multiple Battery Chemistries

  • Lead Acid

  • Lithium-Ion

  • Lithium Iron Phosphate

Supports Common Battery Voltages

  • 6V, 12V, 24V.

  • Custom Float Voltages Between 6-35V Available*. Can explore higher voltage options. 

Compact Integrated Profile

  • 2 x 3 x 1 Inch Approximate Dimensions


  • Reverse Polarity

  • ESD Resistance (AEC-Q101): human body model: class H3B: >8 kV

  • Reverse Leakage

High Conversion Efficiency

  • 88-91% Efficiency *based on i.e. 45W 12V configuration. Efficiency will go down for small panel boosting to a higher voltage


  • Passes EN61000-6-1, EN55024, FCC 47CFR Part 15, CISPR 32, EN 55032, and ICES-003 Class B standards

Rugged Enclosure and Encapsulation

  • Salt Fog per ASTM-B-117-73 5% for 500HR, 

  • IP67

  • Shock 50G 6.3MS

  • Vibration per BS EN 60068-2-64:1993 (15.3GRMS)





When paired with PowerFilm’s semi-flexible crystalline solar, the PowerBoost controller family is well suited to charge battery systems typically found on trucks, railcars, and vehicles. 

  • Refrigerated Trucking

  • Auxiliary Power Units

  • Lift Gates

  • Telematics Systems



The heavy-duty enclosure and encapsulation are well suited for the harsh environments seen in marine applications. 

  • Trickle Chargers

  • Trolling Motors

  • Auxiliary Power


Portable Power

The Powerboost family ensures you are able to extract and store solar energy efficiently for medium and high power applications. 

  • Man-Portable Battery Charging

  • Base Station and Remote Battery Charging

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