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Rectangular silver metal box with front panel controls and cooling vents

All Power Supply

All Power Supply SEC-1230UL 12 V 30 A Power Inverter

SKU CH-9ZEQ-TNTZW

Fully automatic three-stage 30 A charger for 12 V lead-acid batteries with 120/230 V AC input and overload protection

  • Charges three battery banks simultaneously with one unit
  • Automatic three-stage charging protects 12 V lead-acid batteries
  • Works on 120 V 60 Hz or 230 V 50 Hz mains input
  • Overload, short-circuit and over-temperature protection built in
  • Compact 10.7 x 8.4 x 3.25 inch design fits tight spaces

Three-stage automatic charger

The All Power Supply SEC-1230UL is a fully automatic 12 V, 30 A battery charger designed for lead-acid, AGM and gel-cell banks. A DIP switch selects a two-stage algorithm when the batteries must remain connected to a DC load for UPS duty. It also functions as a regulated DC power supply for bench or field use.

Sustained-load behaviour

Overload, short-circuit and over-temperature protection circuits guard the unit during continuous 30 A output. The switch-mode topology maintains stable voltage across 120 V, 60 Hz or 230 V, 50 Hz mains without derating during long charge cycles. Three independent battery banks can be charged simultaneously from a single chassis.

Build and connections

The aluminium enclosure measures 10.7 x 8.4 x 3.25 inches and uses an easy mounting system for rack, wall or vehicle installation. Reverse-polarity protection prevents damage from mis-wired leads. Dual AC input acceptance (120 VAC or 240 VAC) simplifies deployment across regions without external adapters.

Highlights

  • Charges three battery banks simultaneously with one unit
  • Automatic three-stage charging protects 12 V lead-acid batteries
  • Works on 120 V 60 Hz or 230 V 50 Hz mains input
  • Overload, short-circuit and over-temperature protection built in
  • Compact 10.7 x 8.4 x 3.25 inch design fits tight spaces

Specifications

BrandAll Power Supply
ModelSEC-1230UL

Questions about this item

Does the SEC-1230UL fan run loudly or add much heat when it charges batteries continuously for hours?

The switch-mode design keeps the unit light and compact, so it generates less waste heat than linear chargers and the fan only spins when internal temperature demands it.

What cables or battery terminals must I already have to connect the SEC-1230UL to my 12 V bank?

You need ring or lug leads sized for up to 30 A DC and a standard IEC AC cord for 120 V or 230 V mains; the charger provides the output terminals and DIP-switch selection for bank count.

Will the SEC-1230UL safely charge an older flooded battery that has been sitting on a trickle charger for years?

Yes, the three-stage algorithm covers flooded, AGM and gel cells, and the two-stage UPS mode prevents over-charge when a DC load stays connected.

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