BOLD MAGENTA part numbers are new for 2026 PARTS-UNLIMITED.COM 2026 | SNOW ELECTRICAL ELECTRICAL 656 DESCRIPTION PART # OptiMate™ 6 select gold 3807-0575 OPTIMATE™ 6 SELECT GOLD •Perfect for starter and deep-cycle 12V batteries that demand accurate temperature-controlled charging and safe unsupervised long-term maintenance •Voltage selection (14.4V/14.7V) ensures the battery receives charge at the correct voltage •Power supply mode delivers stable power for vehicle system reprogramming, showroom vehicle demo or retaining memorized settings when battery cables are disconnected to fit powered accessories or replace the battery •Charging amps: 6A @ 14.4V/14.7V; 4A @ 13.6V •Use indoors or outdoors (lowest temperature -4 °F (-20 °C)) •Low volt start of 0.5V and two-step desulphation recovery • Ideal for STD,AGM, gel and deep cycle 12V batteries from 3Ah to 240Ah •Input: global (100V to 240V; 50Hz to 60Hz), high-efficiency (CEC listed), fully sealed •Weatherproof case with wall mounts •Six-foot AC supply lead and six-foot charge lead ending in SAE connector •Weatherproof battery lead and standard battery clip set included •No risk of overcharging; totally safe for vehicle electronics • Sparks suppressed, safe for long-term battery maintenance, automatic shut-down if short-circuited or battery disconnected DESCRIPTION PART # OptiMate™ 5 select silver 3807-0571 OPTIMATE™ 5 SELECT SILVER •Eight-step 6V 4A/12V 3A sealed battery saving charger and maintainer • Saves, charges and maintains all 6V/12V lead-acid batteries •Ideal for deep cycle and starter (SLI) lead acid batteries •Fully automatic program brings the battery safely to full charge without any supervision required DESCRIPTION PART # OptiMate™ DC to DC 3807-0339 OPTIMATE™ DC TO DC 12V TO 12V 2A BATTERY CHARGER •Charge and maintain battery without AC power •Draws DC power from another 12V battery to remotely save, recharge, and maintain your stored vehicle’s 12V lead-acid or 12.8V to 13.2V LiFePO4/LFP battery •Great option for emergency vehicle-to-vehicle charging •Extended maintenance guaranteed by the high-efficiency electronics and processor control •Built-in protection prevents deep discharge of the source battery DESCRIPTION PART # OptiMate™ 1 VoltMatic 3807-0570 OPTIMATE™ 1 VOLTMATIC BRONZE SERIES 4-STEP 6V/12V 600MA BATTERY CHARGER/MAINTAINER •The best fully automatic battery maintainer •Maintains any type of 6V/12V lead-acid battery without overcharging or undercharging •Ideal for vehicles that are in storage or seldom/seasonally used •Delivers 600mA constant current at 12V •For indoor use (lowest temperature -4 °F (-20 °C) •Automatic shutdown if battery disconnects or short circuits DESCRIPTION PART # OptiMate™ test TS121 3807-0245 OPTIMATE™ TEST TS121 BATTERY AND CHARGING SYSTEM/ALTERNATOR TESTER • Fast, accurate and professional on-vehicle testing of 12V batteries and charging systems •Checks battery voltage to provide an indication of battery health; checks battery starting power and checks charging system without disassembly by indicating low charging voltage • Connects directly to the battery or “live” 12V outlet •Battery clips are removable and replaceable • Includes two cable straps, adhesive hook-and-loop straps and screws for use if mounting the removable backplate into an enclosure
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