{"product_id":"coleman-3-5-watt-solar-battery-trickle-charger-with-obd-ii-connector","title":"Coleman 3.5 Watt Solar Battery Trickle Charger with OBD-II Connector","description":"\u003cp\u003eIn this review the Coleman 3.5 Watt Solar Battery Trickle Charger with OBD-II Connector is assessed for everyday vehicle maintenance use; it is aimed at drivers who want a simple, low-effort way to keep a 12V battery topped up between drives. The bottom line: this charger is best for owners of cars, SUVs, and light trucks who need a compact, durable solar trickle charger that connects three different ways and prevents battery discharge. The reviewer found it straightforward to use and particularly useful for preserving battery life on seasonal or infrequently driven vehicles.\u003c\/p\u003e\n\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n \u003cli\u003e\n\u003cstrong\u003eThree connection options:\u003c\/strong\u003e The OBD-II connector, included 12V DC plug, and battery clamps give flexible ways to charge depending on vehicle and access, making it convenient for most modern cars.\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eFully automated trickle charging:\u003c\/strong\u003e Its automated operation makes it easy to leave the charger in place without constant monitoring, helping maintain the battery at a safe level.\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eBuilt-in blocking diode:\u003c\/strong\u003e The diode prevents reverse discharge at night, so the panel will not drain the battery when sunlight is absent.\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eDurable construction:\u003c\/strong\u003e The ABS plastic housing and shatterproof tempered glass on the panel stand up to outdoor use and handling.\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eCompact 3.5W output:\u003c\/strong\u003e The small power output is sufficient to keep a 12V battery fresh over time without overcharging, which is ideal for maintenance charging rather than fast recovery.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eWho It's For\u003c\/h2\u003e\n\u003cp\u003eThe Coleman 3.5W trickle charger suits vehicle owners who store cars, motorcycles, SUVs, or trucks for periods between drives and want a low-maintenance method to prevent slow battery drain. It is ideal for weekend vehicles, seasonal equipment, or anyone who wants a compact solar option that plugs into the OBD-II port for safe, tool-free connection.\u003c\/p\u003e\n\n\u003cp\u003eThose who need rapid jump-start power or fast battery recovery after a deep discharge should look elsewhere; this is a maintenance trickle charger, not a high-current starter or rapid charger. Also, very large batteries on commercial trucks or off-grid systems will require a charger with higher wattage and different specifications.\u003c\/p\u003e\n\n\u003ch2\u003ePros \u0026amp; Cons\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003ePros\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n \u003cli\u003eMultiple connection methods make the charger adaptable to most modern vehicles and user preferences.\u003c\/li\u003e\n \u003cli\u003eCustomers report it is easy to use and compact enough to store in a trunk or garage comfortably.\u003c\/li\u003e\n \u003cli\u003eThe blocking diode and automated design protect against battery discharge and overcharging during normal use.\u003c\/li\u003e\n \u003cli\u003eDurable materials like ABS plastic and tempered glass improve longevity for outdoor placement.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eCons\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n \u003cli\u003eThe 3.5W power level is intended for trickle charging only and will not quickly recover a deeply discharged battery.\u003c\/li\u003e\n \u003cli\u003eEffectiveness depends on available sunlight, so performance will vary in shaded or low-sun conditions.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003ctable\u003e\n \u003ctr\u003e\n\u003ctd\u003eProduct\u003c\/td\u003e\n\u003ctd\u003eColeman 3.5 Watt Solar Trickle Charger with OBD-II Connector\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003eOutput power\u003c\/td\u003e\n\u003ctd\u003e3.5 Watt\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003eBattery type\u003c\/td\u003e\n\u003ctd\u003e12V vehicle batteries\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003eConnection options\u003c\/td\u003e\n\u003ctd\u003eOBD-II connector, 12V DC plug, battery clamps\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003eProtection feature\u003c\/td\u003e\n\u003ctd\u003eBuilt-in blocking diode to prevent battery discharge\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003eMaterials\u003c\/td\u003e\n\u003ctd\u003eABS plastic housing; shatterproof tempered glass panel\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003eUse case\u003c\/td\u003e\n\u003ctd\u003eTrickle\/maintenance charging for cars, SUVs, trucks\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch2\u003eOur Verdict\u003c\/h2\u003e\n\u003cp\u003eThe Coleman 3.5W Solar Trickle Charger is a practical, value-oriented choice for anyone who needs a low-maintenance way to maintain a 12V vehicle battery. Its multiple connection options, durable build, and automatic trickle charging make it a convenient tool for seasonal vehicles and infrequently used cars. Buyers looking for fast charging or jump-start capability should consider a higher-power device, but for routine battery care this charger offers good utility and reliability.\u003c\/p\u003e\n\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eCan this charger be left connected to the vehicle long-term?\u003c\/strong\u003e\u003cbr\u003eYes, the charger is designed for maintenance trickle charging and includes a blocking diode and automated control to prevent reverse discharge, making it suitable for extended connection.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eWill it start a dead battery?\u003c\/strong\u003e\u003cbr\u003eNo, the 3.5W output is meant for trickle charging and maintaining charge; it will not provide the high current needed to start a deeply discharged battery.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhich vehicles are compatible with the OBD-II connection?\u003c\/strong\u003e\u003cbr\u003eThe OBD-II connector works with most modern vehicles equipped with an OBD-II port, providing a quick and safe way to connect without using clamps.\u003c\/p\u003e","brand":"Coleman","offers":[{"title":"Default Title","offer_id":46484592001243,"sku":"B00IXXT4HQ","price":31.74,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0724\/1043\/1707\/files\/51rrTmjtUrL._AC_SL1024.jpg?v=1739297516","url":"https:\/\/gearmusthave.com\/products\/coleman-3-5-watt-solar-battery-trickle-charger-with-obd-ii-connector","provider":"GearMustHave","version":"1.0","type":"link"}