D.

LED DISPLAY

LED Indicators: The battery charger has three LED lights. They indicate different functions.

RED LED – A steady glow indicates POWER ON and proper connection to the battery. A flashing red LED usually indicates that the battery is NOT connected correctly and the connections need to be checked. The red LED will also flash if the charger’s circuit breaker opens (see CIRCUIT BREAKER). If Automatic charging takes more than 24 hours, the red LED will flash rap- idly (see note below). The red LED will flash several times when the switch position is changed. (For an explanation of a rapidly flashing red LED, see “Desulfation Mode” in battery Charger Controls section.)

YELLOW LED - A steady glow indicates when the charger is CHARGING in the Automatic modes. It will flash if the charger goes into Desulfation mode. In Manual mode to indicate charg- ing, the yellow LED will flash rapidly.

GREEN LED – When in Automatic mode, after the battery is fully charged, the charger will change to the Charged/Maintain state and the green LED will flicker. This indicates that the Float- mode Monitoring is keeping your battery maintained at full charge. The green LED will also flicker (along with the rapidly flashing yellow LED) when the charger is in Manual mode. If the green

LED is flickering without the yellow LED and the charger is in Manual mode, then charging has lasted longer than 24 hours (see note below).

NOTE: When charging in Manual mode, the battery needs to be monitored frequently. The charger will NOT sense the battery at full charge and shut off automatically. You must disconnect the charger when the battery is at Full Charge or battery damage will occur.

As a safety precaution, the charger automatically switches into Float-Mode monitoring after 24 hours of charging in Manual mode. However, if using the Manual mode, damage to the battery might have already occurred after 24 hours. DO NOT rely on this func- tion to tell you if your battery is fully charged in Manual mode.

Also as a safety precaution, the charger automatically aborts charging if it has not reached the Charged/Maintain state after 24 hours of charging in Automatic mode (the red LED will flash rapidly).

To restart the charging process after the charger switches to Float- mode Monitoring, reset the charger by moving the switch to an- other position then repositioning it to the mode you want to use.

E.

BATTERY CHARGER CONTROLS

MANUAL-AUTOMATIC SWITCH

Charging may be either Manual or Automatic.

OPERATION

The charger contains a three-position switch that determines its mode of operation. There are two AUTOMATIC positions and one MANUAL position.

MANUAL CHARGING

When the MANUAL position is selected the charger will con- tinue to charge and will NOT shut off when the battery is fully charged. The GREEN LED will glow after the charging current has stabilized at some small value but the charger will continue to charge.

WARNING: In the MANUAL position, the charger will continue to charge even after the battery is fully charged.

WARNING: Overcharging can damage the battery.

AUTOMATIC CHARGING

When an AUTOMATIC position is selected, the charger goes through a three-step charging process. During the BULK charge phase, the charger attempts to deliver 12 amps of current to the battery until the battery voltage levels off. At this point, the charger enters the ABSORPTION charge phase. In this phase, the charger will hold the battery voltage constant and let the battery determine the charging current. When the charging current sta- bilizes, the charger will continue to charge for a couple hours to bring the battery up to full charge. The charger will then auto- matically enter the MAINTAIN MODE - Float-Mode Monitoring. During this phase, the charger will hold the battery voltage con- stant at 13.2 volts to guard against self-discharge of the battery. The charge current will typically be a few tenths of an amp.

3

Page 2 Page 4
Page 3
Image 3
Schumacher SS-120A-PE owner manual LED Display, Battery Charger Controls
Page 2 Page 4

SS-120A-PE specifications

The Schumacher SS-120A-PE is a compact and versatile battery charger and maintainer designed for a variety of battery types and applications. Whether for automotive, marine, or other deep-cycle batteries, this unit stands out due to its efficiency and ease of use.

One of the primary features of the SS-120A-PE is its ability to charge 12V lead-acid batteries, including standard flooded, gel, and AGM (Absorbent Glass Mat) types. With a robust charging capacity of 12 amps, the unit can efficiently restore and maintain battery health, ensuring reliable performance for everyday use.

The SS-120A-PE utilizes advanced microprocessor technology, allowing for smart charging and maintenance. This intelligent system automatically adjusts the charging rate as needed, helping to prevent overcharging and extending the lifespan of your batteries. The integrated maintenance mode ensures that the battery stays charged while being left unattended, making it an ideal choice for seasonal vehicles like boats or motorcycles.

Safety features are paramount in the design of the Schumacher SS-120A-PE. It comes equipped with short-circuit, overload, and reverse polarity protection. These features not only safeguard the charger itself but also protect the battery being charged, giving users peace of mind during operation.

Another notable characteristic of the SS-120A-PE is its compact design, which allows it to be easily stored or transported. Weighing in at a manageable size, it is user-friendly and perfect for both home use and professional environments. The built-in LEDs keep users informed of the charging status, with clear indicators for when charging is complete.

Furthermore, this model offers a versatility that resonates with users across a broad spectrum. From jump-starting a vehicle to maintaining the optimal charge of a stored battery, the Schumacher SS-120A-PE is designed to meet varying needs seamlessly.

In conclusion, the Schumacher SS-120A-PE is a feature-rich battery charger and maintainer that stands out in its category. Its intelligent charging technology, safety features, and user-friendly design make it an essential tool for anyone looking to maintain battery health reliably and effectively. Whether it's for personal hobby use or professional maintenance, this unit shines in its capability to deliver consistent performance.
Top Page Image Contents