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Sterling Power

Sterling Power Pro Charge Ultra 24v/20A 3 Bank Charger

Sterling Power Pro Charge Ultra 24v/20A 3 Bank Charger

Regular price $399.95
Regular price $460.00 Sale price $399.95
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*This is a Special-Order item. Please allow up to 7 to 10 Business days for delivery. 2 Day Shipping not currently available. 

Sterling Power Model PCU2420: 24 Volt. 20 Amp. 3 Bank Battery Charger.

Our new line of Marine Grade, Power Factor Corrected Battery Chargers set a new standard of what you should expect from your battery charger regarding features, performance & price. Years of experience in the battery charging industry have provided us the insight to include everything we could think of and combine it all into the ProCharge Ultra line of feature-rich, high-performance marine-grade battery chargers. This exceptionally efficient power factor-corrected battery charger runs on any Global AC Power source between 90-260 volts, requires less input power, produces less waste heat, and still has a remarkably small, lightweight footprint. Did we mention Eleven pre-programmed battery charging curves as well as one user customizable battery profile? Check the real-time voltage or current output on the digital display or on the optional remote control that can be either surface, recess, or flush mounted over 30 feet away from the battery charger.

Sterling Power Usa offers full support and a 5-year warranty from their operations center in Maine.

Product information:

 (Specs are for the 12v 60 amp model, all other units data prorated)

Input voltage range 90-270 v 40-70 Hz

Power Factor at 230 v 0.976

Efficiency 89.4%

Full load current (110/230v) 9.8/4.6

Ripple noise (R.M.S.) 14mv

Ground leakage 0.5 ma

Generator/ mains power required to run unit (watts)

12 v 20 amp approx 300 watts

12 v 30 amp approx 450 watts

12 v 40 amp approx 600 watts

12 v 50 amp approx 750 watts

12 v 60 amp approx 900 watts

24 v 20 amp approx 600 watts

24 v 30 amp approx 900 watts

Volt meter accuracy +/- 1%

Amp meter accuracy +/- 1%

Temperature Compensation on the ProCharge Ultra: 0.018V/18mV per 1degC on either side of 20degC, When the temp rises, voltage drops. When the temp drops, the voltage rises.

Additional Features:


  • Global Input Power- This battery charger will operate anywhere in the world! This battery charger will automatically operate with an a/c input of 90-260 volts (40-80 Hz).
  • 11 Preprogrammed battery charge curves, including LiPO4, GEL, AGM, Calcium, and Flooded Lead Acid Batteries.
  • One custom, user programmable battery charge profile. Can be set from the charger, no need for a computer.
  • Four Step Battery Charging Profile extends the life of your batteries by ensuring a full charge & conditioning, as well as entering a float mode when charging is complete to protect against overcharging your batteries.
  • One common negative, three positive battery posts allow the user to charge 1, 2, or 3 battery banks.
  • Two Digital Meters displaying real-time current and voltage measurements.
  • One power meter shows % of charger capacity being used as well as the power capacity remaining.
  • Active Power Factor Correction (PFC)- up to 0.99pf, ensuring efficient power conversion, increasing efficiency by nearly 40% over older, non-PFC technology.
  • Additionally, our new synchronized rectification output increases the efficiency of this charger up to 10% over traditional diode-based chargers found on the market today.
  • High Voltage de-sulphation cycle for customers with flooded lead acid batteries.
  • Low activity, stand-by mode to increase battery life.
  • Digital Microprocessor Controlled High Voltage Protection System (Primary) and an emergency backup analog controlled high voltage trip (secondary)
  • Constructed of non-ferrous metals and marine-grade materials. Lightweight, Compact footprint for easy installation.
  • Designed and built to UL1236 Marine & ABYC-31 standards.
  • 32 LED Information Panel, internal scan, and systems check.
  • Remote port for optional remote-control w/10-meter cable. Remote can be surface, flush, or recess mounted.
  • Battery temperature sensor included.
  • Remote control option (Sold Separately): 110x 68 x20 mm. Includes 10 meters cable. Unique remote housing can be surface mounted, recess mounted, or flush mounted.

    A Summary Sheet of our New ProCharge Ultra Line of Battery Chargers- The Ultimate Battery Charger: Page4 PCU 1.cdr (


    Installation / Owner's Manual for our ProCharge Ultra Line of Battery Chargers: PCU Handbook 2021 rewrite.cdr (

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