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Power Tools Direct£207.13Visit shop Draper Tools Schumacher ® Sci90 6/12V Multi-Function Battery Charger With Engine Start Mode 3A/5A/20A 13109
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B&Q£214.43Visit shop B&Q - 13109 Schumacher Sci90 6/12V Multi-Function Battery Charger Engine Start Mode3A/5A/20A
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The Draper SCI90 multi-function battery charger is designed for vehicle owners and DIY mechanics needing a reliable tool for maintaining and reviving vehicle batteries. Its key benefit lies in its versatility, acting as a charger, engine starter, and tester for 6V and 12V lead-acid, gel, and AGM batteries. A potential caveat is that its advanced features require some basic understanding of battery types and charging procedures.
| Model Part Number | 13109 |
|---|---|
| Brand | Draper |
No, this charger is specifically designed for lead-acid, gel, and AGM batteries. It is not compatible with lithium-ion batteries.
The charger offers variable charge rates of 3A, 5A, and a maximum charging current of 20A.
Charging time varies significantly depending on the battery's capacity and its current state of charge. A full charge can take several hours.
The desulfation mode uses high-frequency pulses to break down sulfate crystals that form on battery plates, which can help recover batteries that have been deeply discharged or left unused for extended periods.
The 150A boost mode is intended for emergency starting and should be used for short durations (typically under 10 seconds) to avoid stressing the battery or charger. It's best to allow the charger to continue charging the battery after starting.
Float mode is a maintenance charge. Once the battery is fully charged, the charger enters a low-power state, monitoring the battery voltage and delivering small amounts of current only as needed to keep the battery at 100% charge without overcharging.
The digital display will show the current charging status, battery voltage, and any error messages. You should also hear the cooling fan operate when the charger is under load.
Check that the power cord is securely plugged into a working outlet. Ensure the unit's switch is in the 'on' position. Verify that the battery clamps are not shorting out.
Confirm the clamps are making good contact with the battery terminals. Ensure the correct voltage (6V/12V) is selected or detected. Check if the battery is deeply discharged; if so, try the desulfation mode or engine start mode.
The thermal protection may have activated due to overheating. Ensure adequate ventilation. Allow the unit to cool down before restarting. Check for any signs of battery damage or short circuits.
Refer to the specific error code meanings if provided in a separate manual. Common issues include poor connections or incompatible battery types.
The clamps are connected to the wrong battery terminals. Disconnect the charger from the power outlet, switch off the unit, and reconnect the clamps correctly (red to positive, black to negative).
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