Isthmus Models

Power Supply 13.8V, 8.5A from Pro-Peak

Despite its compact size, this power supply puts out the amps! It makes a great indoor companion device to your 12v DC input, NiCd or NiMH battery charger. This is a high-quality switch-mode power supply with a particularly smooth output current, making it suitable for almost all 12v DC input chargers available today. Includes a built-in cooling fan.

Input voltage range: 110v AC
Output voltage: 13.8v DC, regulated
Output current rating: 0-8.5 Amps
Output connections: 4mm banana/Clamp type
Size: 5 x 3.75 x 2.75 in

HUGE! 20 amps of power at a very economical price!

The ProPeak power supply is a high quality switch mode power supply with a particularly smooth output current, making it suitable for use with almost all 12v input chargers available today. Using switch mode technology gives greater efficiency and reduces the weight and size of the power supply compared to other systems.

Technical Data:

• Input voltage range: 110v AC
• Output voltage: 13.8v DC regulated
• Output current rating: 0~20 Amps
• Output connections: 4mm banana/Clamp type

The Pro-Peak Dual Output 13.8v Power Supply is a high quality switch mode power supply with a particularly smooth output current, making it suitable for use with almost all 12v input chargers available today. The dual outputs allow easy connection of two chargers, To take advantage of the exceptionally high maximum current of 20 Amps, the LCD readout gives an at-a-glance display of the current being supplied by the Power Supply.

Technical Data:

• Input voltage range: 110v AC
• Output voltage: 13.8v DC regulated
• Current rating: 0-20 Amps
• Output connections: 4mm Banana/Clamp
• LCD Current readout

32~45Amp power supply
The SPS-series DC power supply was designed specifically for use with land mobile radio, and it produces clean reliable power and is highly filtered to suppress RFI.


Input Voltage: 110 & 220VAC ±15%

Output Voltage: 9~15DC DC Voltage Adjustable

Output Current: 32 Amp to 45 Amp

Dimensions: 225 x 225 x 118
L x W x H (mm)


Net Weight Kg: 2.8

Key Features:

• A/C Input: 110V 60Hz
• D/C Output: 12V
• D/C Current: 9 A max, continuous
• Output Voltage Protection: 115-135% (not resetable)
• Output Current Protection: 110-150%
• Operating Temp: -14 to 122 deg F
• Dimension: 7.8" x 3.9" x 1.5"