1. Charge current switch. 3 levels are optional:
10A(12V)/5A(24V), 20A(12V)/10A(24V), 35A(12V)/18A(24V).
2.for batteries used on Battery Management Systems(BMS) only. Used to select a mode for charging 12V or 24V Lithium batteries, 3.for ordinary lead-acid batteries/maintenance-free batteries including AGM, GEL, SLA, WET, DEEP CYCLE, EFB, Calcium, etc. 4.For charging 12V or 24V LiFePO4 batteries. 5.For activation or maintenance of weak, old and idle batteries. 6.Can not repair severely damaged batteries. Not for Lithium and LiFePO4 batteries. Auto-Memory :The charger has a memory function and will automatically select the last mode Warn: 1. The charger is designed for 12V and 24V Lithium,Lead-acid, LiFePO4 batteries with. 2. Check battery specifications before using. 3. Provide ventilation to prevent flames and sparks. 4. Do not expose charger to the sun, or under high temperature environment. 5. Battery acid is corrosive. Rinse immediately with water if acid comes into contact with skin or eyes. 6. Do not charge a frozen or damaged battery. 7. Do not charge non-rechargeable batteries. 8. Do not place the charger on the battery while charging. 9. Be extra cautious to reduce risk of dropping a metal tool on the battery. It might spark or short-circuit battery or other electrical part that may cause explosion. 10. When working with a lead-acid battery, remove personal metalitems such as rings, bracelets, necklaces, watch... 11. Do not smoke or allow a spark or flame while charging. 12. In order to reduce risk of electric shock, unplug charger from AC outlet before doing any maintenance or cleaning . 13. Not intended for children and anyone unable to follow the user manual. 14. Do not over-charge your battery even it is kept connecting in any mode. Package list : Charger *1 Power cable *1 Cable lugs *1 Alligator Clips*1 Manual*1