A Starter Charger range that passes the 1-2-3. Test. 1-SAFE, 2-All Battery Types, 3-Even when the battery type is unknown. Chargers and starts all 12 & 24v lead acid batteries including AGM/EFB STOP START vehicles. No supervision required; at the end of the charge the unit enters float mode. Unit permanently monitors health of the battery and automatically adjusts the output voltage. Will charge batteries as low as 1v. SOS recovery of sulphated batteries. Timer function permits safe charging of deeply discharged batteries (less than 1v). Automatic start, sends current to the battery only when you turn the ignition key, protecting the vehicles electronics. Requires 240v supply.