Mercedes 48V Battery Activator for W206/W223 EQ Boost MHEV Support Unlock and Offline Tester

This professional tool is built exclusively for Merce-des' latest EQ Boost 48V mild hybrid cars: W206 C-Class and W223 S-Class. Mercedes 48V lithium batteries will lock and power off automatically after long idle discharge, collisions, or voltage fluctuations. This triggers a dashboard 48V fault light and prevents the car from starting. Standard OBD scanners only read fault codes; they cannot unlock locked batteries or test battery health offline. Official Mercedes dealers often advise costly full battery replacement. Our 48V battery activator lets technicians remove the battery for offline unlocking, activation, and health checks. It revives most locked batteries and drastically lowers repair expenses for garages. Lead time for English version: 3–4 days. Pre-Purchase Notes Exclusive for Mercedes W206 & W223 48V EQ Boost mild hybrid system, not compatible with other Mercedes models, BMW, Audi hybrids, or electric vehicles It cannot repair swollen, leaking, or internally damaged batteries Strictly follow the positive & negative wiring sequence to avoid equipment damage 48V lithium battery is not included in the package Core Main Functions 1. Unlock and Activate Locked 48V Lithium Battery Reset BMS safety protection for batteries locked by vehicle collision Wake up deeply discharged batteries after long-time parking standby Restore normal voltage output of disabled 48V battery 2. Offline Battery Health Detection Real-time display total voltage, single cell voltage difference, internal resistance, and SOC status: Judge whether the battery is merely locked or permanently damaged Normal working voltage range: 42V ~ 52V 3. Cell Voltage Balancing Maintenance Balance inconsistent voltage between internal cells after deep discharge, optimize battery status, and extend service life. Supported Vehicle Models Only fit Mercedes EQ Boost 48V MHEV vehicles: W206: 2021+ New C-Class (C200L, C260L) with M254 engine W223: 2021+ New S-Class (S400, S450) Advantages For Auto Repair Shops 1. Offline bench operation, no repeated vehicle assembly and road test 2. Unlock crash-deep-discharge-locked batteries to avoid expensive battery replacement 3. Accurate battery health detection to eliminate misdiagnosis 4. Clear digital data display, easy operation for novice technicians 5. Reverse polarity protection ensures safe wiring 6. After activation, cooperate with Mercedes diagnostic software for battery adaptation Package Contents 1 × W206/W223 48V Battery Activator Host 1 × Dedicated battery connection harness 1 × 12V power cable 1 × English operation manual FAQ Q1: Can it fix the 48V battery warning light on Merce-des dashboard? A1: Yes. It unlocks the locked battery and restores normal power output. After installation, clear fault codes and complete battery adaptation via Merce-des professional diagnostic tool; the warning light will disappear. Q2: Does it work for old Mercedes W205 / W222 48V batteries? A2: No, this tool is specially calibrated for the W206 and W223 new-generation ISG 48V system only. Q3: Can I use it to charge the 48V battery directly? A3: Mainly for unlocking, activation, and detection; it supports mild cell balancing, not a professional high-power charger. Email: sales002@vxdas.com WhatsApp: +86 137 2882 3411