{"product_id":"ctek-cs-free-portable-battery-charger-40-462","title":"CTEK CS FREE Portable Battery Charger | 4-in-1 Adaptive Boost 12V | CTEK40-462","description":"\u003cp\u003eThe CTEK CS FREE is a four-in-one portable device that works as a 12V battery charger, maintainer, adaptive booster, and USB power bank. Its Adaptive Boost technology safely revives a flat battery, even one that has dropped very low, without the voltage spikes that can damage vehicle electronics, and it does this cordlessly without a wall outlet. It delivers up to 20A and 240W to a 12V battery, charges and maintains batteries from 10 to 130Ah across WET, MF, Ca\/Ca, AGM, EFB, GEL, and LiFePO4 types, and carries a 66Wh lithium-ion power bank with USB-C and USB-A outputs for phones and laptops. The unit itself recharges over USB-C from a wall adapter, a 12V socket, a solar panel, or a service battery, and it is rated IP54. CTEK backs it with a 2-year warranty.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eType: 4-in-1 portable charger, maintainer, booster, and power bank\u003c\/li\u003e\n\u003cli\u003eAdaptive Boost safely revives flat 12V batteries cordless\u003c\/li\u003e\n\u003cli\u003eOutput: up to 20A \/ 240W to a 12V battery\u003c\/li\u003e\n\u003cli\u003eCharges and maintains 10-130Ah\u003c\/li\u003e\n\u003cli\u003eBattery types: WET, MF, Ca\/Ca, AGM, EFB, GEL, LiFePO4\u003c\/li\u003e\n\u003cli\u003e66Wh Li-ion power bank with USB-C and USB-A outputs\u003c\/li\u003e\n\u003cli\u003eRecharges via USB-C (wall, 12V socket, solar, or service battery), IP54\u003c\/li\u003e\n\u003cli\u003eWarranty: 2 years\u003c\/li\u003e\n\u003cli\u003ePart number: CTEK40-462\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\u003ch5\u003eWhat does the CTEK CS FREE do?\u003c\/h5\u003e\u003cp\u003eIt is a four-in-one 12V battery charger, maintainer, adaptive booster, and USB power bank in one portable unit.\u003c\/p\u003e\u003ch5\u003eCan it revive a dead battery without a wall outlet?\u003c\/h5\u003e\u003cp\u003eYes. Its Adaptive Boost technology safely revives a flat 12V battery cordlessly, without damaging vehicle electronics.\u003c\/p\u003e\u003ch5\u003eWhat batteries does it support?\u003c\/h5\u003e\u003cp\u003e12V batteries from 10 to 130Ah, including WET, MF, Ca\/Ca, AGM, EFB, GEL, and LiFePO4 types.\u003c\/p\u003e\u003ch5\u003eHow is the CS FREE itself recharged?\u003c\/h5\u003e\u003cp\u003eOver USB-C from a wall adapter, a 12V socket, a CTEK solar panel, or a service battery. It also has a 66Wh power bank for USB devices.\u003c\/p\u003e\u003cscript type=\"application\/ld+json\"\u003e{\"@context\": \"https:\/\/schema.org\", \"@type\": \"FAQPage\", \"mainEntity\": [{\"@type\": \"Question\", \"name\": \"What does the CTEK CS FREE do?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"It is a four-in-one 12V battery charger, maintainer, adaptive booster, and USB power bank in one portable unit.\"}}, {\"@type\": \"Question\", \"name\": \"Can it revive a dead battery without a wall outlet?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Yes. Its Adaptive Boost technology safely revives a flat 12V battery cordlessly, without damaging vehicle electronics.\"}}, {\"@type\": \"Question\", \"name\": \"What batteries does it support?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"12V batteries from 10 to 130Ah, including WET, MF, Ca\/Ca, AGM, EFB, GEL, and LiFePO4 types.\"}}, {\"@type\": \"Question\", \"name\": \"How is the CS FREE itself recharged?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Over USB-C from a wall adapter, a 12V socket, a CTEK solar panel, or a service battery. It also has a 66Wh power bank for USB devices.\"}}]}\u003c\/script\u003e","brand":"CTEK Power Inc","offers":[{"title":"Default Title","offer_id":43609010307120,"sku":"FBKM_40-462","price":199.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0586\/9548\/3440\/files\/40-462_20CS_FREE-main_20image-001.jpg?v=1789152493","url":"https:\/\/berryperformancesales.com\/products\/ctek-cs-free-portable-battery-charger-40-462","provider":"Berry Performance Sales","version":"1.0","type":"link"}