xxRevised Description:xx Ideal for: - Dual battery systems - Vehicles with frequent short trips that drain the battery - Infrequently driven vehicles - High-performance engine upgrades - High-power audio systems (maximizes amplifier performance) - Replacing conventional lead-acid batteries The MK3 version features an auto-resetting PTC electronic fuse, offering superior protection compared to standard fuses or other voltage boosters. In case of an electrical fault, the PTC cuts off power to prevent damage to the booster, wiring, or alternator, then resets automatically once the issue is resolved. xxKey Advantages:xx - Designed for alternator voltage boosting with optimized safe voltage gain - Exclusive PTC fuse protection for enhanced safety - Fully epoxy-encased electronics for water, moisture, and mechanical resistance - Compatible with mini blade (5A, 7.5A, 10A) and standard 7.5A blade fuses��no modifications needed xxPlug-and-play installation:xx Replaces the alternator sensing fuse while retaining original fuse protection. Includes full DIY instructions. xxNote:xx - Specify vehicle model or fuse type during checkout (default: 7.5A). - Confirm compatibility before purchase. - Not suitable for 2.8L Prado or 2.8L Hilux engines. Tested extensively with no reported electrical or battery issues. Use at your own risk��no liability for damages. xHKB Electronicsx