Product Overview
Powersonic PSC-124000AP Sealed Lead-Acid Parallel Charger, 12Vdc at 4 Amps
Condition
Used, pulled from a decommissioned monitoring system, clean and in good working condition. The black wrinkle-finish metal case is square on all four corners, with a few light scuffs on the top panel and bright rub marks along the edges of the extruded aluminum heatsink. The front panel legend is crisp: a single indicator window sits to the left of three color-coded lines reading MAINTAIN BATTERY in green, CONSTANT CURRENT in yellow and FAULT in red, with the small note "(shorted or reversed output connector)" still legible beneath. The rear specification label reads POWER-SONIC, MODEL PSC-124000AP, OUTPUT 12Vdc 4A, 115/230V~ 50-60Hz 0.98A, P/N 130-0019-01 D 0149. The red input voltage selector on the back panel is set to 115, the IEC inlet and its fuse drawer are intact, and the caution legend beside them calls for 250V 5 x 20 mm fuses, 2A on 115V and 1A on 230V. The base carries a mounting flange at each end, four rubber feet, a QC PASSED sticker and the safety label printed XENOTRONIX Inc. with CSA marking LR68678. The DC output lead leaves the back through a strain-relief grommet and is coiled and tied off; in these photos its ends are bare, with no battery connector fitted. A detachable NEMA 5-15P to IEC C13 line cord appears alongside the charger in these photos; it is shown for reference and we are not listing it as an included accessory.
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Product Overview
The Power-Sonic PSC-124000AP is a 12 volt charger for sealed lead-acid batteries, rated on its own rear label at 12Vdc and 4 amps out, from a 115/230V 50-60Hz supply drawing 0.98A. The front panel calls it a parallel charger and gives the operator three states to read at a glance: constant current while it is doing the work, maintain battery once the pack is up, and a fault indication that the panel itself attributes to a shorted or reversed output connector. It is a benchtop or wall-adjacent box rather than a plug-in wall wart, built into a painted metal case with an extruded aluminum heatsink running the length of one side, a mounting flange at each end, and no cooling fan visible anywhere on the unit. Line power arrives on a standard IEC C14 inlet with an integral fuse drawer, and a red slide selector next to it sets the input for 115V or 230V. Besides the model number, the labels carry P/N 130-0019-01 D 0149 and the maker's safety plate for XENOTRONIX Inc. under CSA marking LR68678, both useful when you are cross-referencing an older charger against what is on your shelf.
Key Features
- Output per the rear label: 12Vdc at 4A
- Input per the rear label: 115/230V~, 50-60Hz, 0.98A
- Red slide selector for 115V or 230V input, shown set to 115 in the photos
- Fusing per the caution legend: 250V, 5 x 20 mm, 2A at 115V and 1A at 230V
- Three-state front panel indication: maintain battery, constant current, fault
- Fault legend attributes the red state to a shorted or reversed output connector
- IEC C14 inlet with integral fuse drawer, takes a standard detachable line cord
- Extruded aluminum heatsink along one side, no cooling fan present
- Metal enclosure with a mounting flange at each end and four rubber feet
- Additional label markings: P/N 130-0019-01 D 0149, XENOTRONIX Inc., CSA LR68678
- Base label states indoor use only and warns of explosive gases during charging
Applications
- Alarm and monitoring technician bringing a 12V standby battery pack back up on the bench before it goes back in a cabinet
- Facility electrician keeping a spare charger on the shelf for an emergency lighting or annunciator cabinet that still runs sealed lead-acid
- Ham radio or mobile power builder maintaining a 12V sealed lead-acid pack between events instead of leaving it to self-discharge
- Robotics or electric mobility hobbyist who wants a fixed-output charger with real fault indication rather than an unmarked import supply
Frequently Asked Questions
What does this charger actually put out?
The rear specification label states OUTPUT 12Vdc 4A. That figure is read directly off the unit in these photos, not from a catalog sheet. Check it against the amp-hour capacity and manufacturer charge rate of your own battery before you connect it.
What do the three front panel labels mean?
The panel legend reads MAINTAIN BATTERY in green, CONSTANT CURRENT in yellow and FAULT in red, with a single indicator window beside them. The panel itself defines the fault state as a shorted or reversed output connector, which tells you the first two things to check if it lights.
Can I run it on 230V?
The back panel has a red slide selector marked for 115 and 230 and it is shown set to 115. The caution legend next to the IEC inlet calls for a 2A fuse at 115V and a 1A fuse at 230V, both 250V 5 x 20 mm. We have not opened the fuse drawer, so if you move the selector, confirm what fuse is actually fitted before you apply power.
Does it come with a battery connector on the output lead?
No. The DC output lead exits the back through a strain-relief grommet and is coiled and tied, and in these photos its ends are bare with no plug or clamp fitted. You will terminate it yourself to suit your pack, and given what the fault legend says, get the polarity right the first time.
It is a used pull, so what am I actually taking on?
One unit, the one photographed here, pulled from a decommissioned monitoring system and described as clean and in good working condition. The photos and the labels are the spec: the case, the panel legend, the 115 selector position and the bare-ended output lead are all shown from several angles so nothing arrives as a surprise. What we have not published is a bench charge profile against a specific battery, so meter the output before you commit a pack to it. This item clears our free-shipping line on its own, and orders leave the Idaho warehouse the same or next business day.
Standby power is the least interesting job in a building right up until the mains drop, and this Redwood City box spent its working life quietly holding a monitoring system's batteries at the ready. Wire it to your own pack and let it go back to doing the boring, important thing.
