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Samlex 12v 80 Amp 2 Bank Automatic Smart Charger SEC-1280UL

Was: $628.00
Sale Price: $460.49
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This reliable battery charger can also be used as a constant voltage power supply.

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Product InformationStore Part Number: SEC-1280UL


The Samlex SEC-1280UL is an advanced fully automatic three-stage 80 Amp marine battery charger. It is ideal for charging all types of 12 Volt lead-acid batteries ( Flooded / Absorbed Glass Mat (AGM) / Gel Cell) from a 120 V, 60 Hz or 230 V, 50 Hz AC source. By means of a DIP switch setting, conversion to a two-stage algorithm is possible to charge batteries connected to a DC load (DC UPS). The unit can also be used as a DC Power Supply. Features include overload, short-circuit and over-temperature protection. The unit allows charging of up-to 2 separate battery banks.

Popular Applications
Test bench
Marine and RV
Communications sites
Battery back-up systems


  • Switch mode technology for high efficiency, lightweight and quiet operation
  • Automatic operation for ALL Lead Acid Batteries Flooded, AGM or Gel Cell
  • Can charge 2 banks of batteries simultaneously, no isolator necessary
  • Can be used as a power supply or DC UPS when used in conjunction with a battery
  • User Configurable AC Input voltage 120 or 230 VAC, 50 / 60 Hz
  • User Selectable ( by DIP Switch) for 2 or 3 stage, rapid and safe charging of standalone and loaded Lead Acid Batteries
  • “Half Power Mode” reduces maximum charging current to half the rated capacity, allows for safe charging of lower capacity batteries
  • Voltmeter and Ammeter for monitoring
  • Fan cooled based on output current
  • Protections: Short circuit, overload, reverse battery connection and over temperature
  • Optional remote LED panel with 10m of wire (model: 900-RC - Sold Separately) for remote on/off control and indication of charging status
  • Includes temperature sensor to prevent under/overcharging of battery if temperature varies extensively
  • Safety certified and listed to UL Standard UL-1564
  • EMI Compliant to FCC Part 15(B), Class A
  • 2 Year Warranty

Tech Specs

  • Dimensions (LxWxH): 15 x 9.61 x 3.82 in
  • Weight: 9 lbs
  • Shipping Weight: 17 lb
  • Nominal Input Voltage (Factory Preset): 120 VAC, 50 / 60 Hz (108 to 132 VAC)
  • Nominal Input Voltage (By Changing Internal Jumper): 230 VAC, 50 / 60 Hz (207 to 253 VAC)
  • INPUT CURRENT At 120 VAC input / At 230 VAC input: 15.9A / 8.6A
  • OUTPUT VOLTAGE Voltages are applicable at battery temperature of 77˚ F / 25˚ C :
  • OUTPUT VOLTAGE - Bulk “I Phase”: 13.5 V ± 0.05V
  • Absorption “Uo Phase”: 14 V / 14.4 V ± 0.05 V
  • Float “U Phase”: 13.5 V ± 0.05 V
  • MAXIMUM BULK CHARGING CURRENT, I - Normal Operation: 80A
  • Half Power Mode: 40A ± 1A
  • THRESHOLD OF CURRENT FOR CHANGE OVER From Float “U” To Absorption “Uo”: 15A ± 1A
  • THRESHOLD OF CURRENT FOR CHANGE OVER From Absorption “Uo” To Float “U”: 8A ± 0.5A
  • Model: SEC-1280UL
  • Manufacturer: Samlex
  • DURATION OF ABSORPTION STAGE “Uo”: 4 Hrs or 8 Hrs (Switch selectable)
  • TEMPERATURE COMPENSATION: Yes, with temperature sensor TF-500
  • WIRED REMOTE PANEL (OPTIONAL): Yes, (model 900-RC)
  • COOLING: Load Controlled Fan - ON at 15A ± 1A; OFF at 8A ± 0.5A
  • PROTECTIONS: Overload, Short Circuit, Reverse Polarity, Over Temperature
  • OUTPUT CONNECTORS: Terminals with tubular holes (8 mm / 0.315” Dia) and set screw (M8)
  • OPERATING TEMPERATURE RANGE: 0˚ - 40˚ C / 32˚ F - 104˚ F
  • FUSES - AC INPUT SIDE (6.3 mm x 32 mm / .25” x 1.26”): Slow Blow / Time Delay - 20A / 250V
  • FUSES - DC OUTPUT SIDE Automotive Blade Type e.g. Littelfuse “ATO” Series: 32V, 90A (3 pieces of 30A in parallel)
  • SAFETY COMPLIANCE: Intertek - ETL Listed. Conforms to ANSI / UL STD 1564
  • Certified to CAN / CSA STD C22.2 No. 107.2 :
  • EMI COMPLIANCE: FCC Part 15(B), Class B
  • Manufacturer Part #: SEC-1280UL
  • UPC: 622988083044
  • Made In: Taiwan

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Rated 5.00/5 Stars from 1 customer reviews.

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Great product at a premium price
Have 12 of these units powering amateur radio repeaters. They last about 10 years then fail to put out proper voltage. Bought 2 units for spares. Best price from this seller. Would use a cheaper unit but the temperature sense is a must.
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Written by on Jun 26, 2020. Verified Purchase — (1 of 1 customers found this review helpful

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