User Manual for Sealey SPI3S.V2 3A 12V Intelligent Battery Charger

Quick guide from the manual

The Sealey SPI3S.V2 is an intelligent battery charger and maintainer designed for 12V lead-acid and lithium LiFePO4 batteries. It features an auto-start function and does not have an ON/OFF switch; operation begins once connected to an AC outlet. Always ensure the battery type is selected correctly using the battery type button.

Safety Instructions

• Risk of Electric Shock: Do not expose the charger to rain or snow. Unplug before maintenance.
• Risk of Explosive Gases: Batteries generate explosive gases. Work in a well-ventilated area, away from sparks and flames.
• Placement: Locate the charger as far away from the battery as DC cables permit. Never place the charger directly above the battery.
• Battery Compatibility: Use only with 6-celled lead-acid or 4-celled lithium LiFePO4 rechargeable batteries. Do not use with non-rechargeable batteries.

Preparation and Connection

Before charging, clean battery terminals and ensure the area is well-ventilated. If removing the battery from the vehicle, always remove the grounded terminal first.

Connecting to a Vehicle Battery

1. Identify the grounded battery post (connected to the chassis).
2. For negative-grounded vehicles: Connect the RED (POSITIVE) connector to the positive battery post. Connect the BLACK (NEGATIVE) connector to the vehicle chassis, away from the battery and fuel lines.
3. For positive-grounded vehicles: Connect the BLACK (NEGATIVE) connector to the negative battery post. Connect the RED (POSITIVE) connector to the vehicle chassis, away from the battery and fuel lines.
4. Plug the AC cord into an electrical outlet.

Connecting Outside the Vehicle

1. Attach a 24-inch (61 cm) long 7 AWG insulated battery cable to the negative battery post.
2. Connect the RED (POSITIVE) charger connector to the positive battery post.
3. Connect the BLACK (NEGATIVE) charger connector to the free end of the cable attached to the negative post.

Operation

The charger features a digital display and a battery type/language button. Press the button once to select lead-acid, twice for lithium-ion. If no button is pressed, charging starts automatically in ten minutes. To change the display language, press and hold the button for 5 seconds (EN, DE, FR).

LED Indicators

• Green LED solid: Charging.
• Green LED pulsing: Fully charged, in Maintain Mode.
• Green LED flashing: Charge aborted.

Maintenance and Storage

Store the charger unplugged in an upright position in a cool, dry place. Use a dry cloth to wipe corrosion and dirt from connectors and the case. There are no user-serviceable parts inside.