{"product_id":"ctek-rb-4000-portable-battery-booster-40-624","title":"CTEK RB 4000 Portable Battery Booster 40-624","description":"\u003ch2\u003eCTEK RB 4000 Portable Battery Booster for Compatible Corvettes\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eCTEK RB 4000 Portable Battery Booster\u003c\/strong\u003e, part number \u003cstrong\u003e40-624\u003c\/strong\u003e, supplies portable jump-start power for vehicles with compatible \u003cstrong\u003e12V lead-acid batteries\u003c\/strong\u003e. Its 4000A peak rating and 88.8Wh internal battery distinguish this model within the CTEK booster range. For a Corvette, suitability depends on the vehicle's battery chemistry, \u003cstrong\u003enon-hybrid configuration\u003c\/strong\u003e, and approved jump-start procedure rather than its model year alone. Supplied as one complete booster kit, the RB 4000 combines a detachable clamp module, status display, integrated flashlight, USB charging connections, and protective carrying case.\u003c\/p\u003e\n\u003cp\u003eThe RB 4000 suits drivers who want extra stored energy in a roadside kit without moving to a larger housing. Its 88.8Wh battery provides 50% more energy than the RB 3000, although both models have the same published starting-current rating. That distinction helps you choose capacity rather than relying on the peak-amp number alone. The detachable clamp module and supplied case keep the equipment organized between trips.\u003c\/p\u003e\n\u003ch3\u003eProduct Details\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct identity:\u003c\/strong\u003e CTEK RB 4000, manufacturer part number 40-624.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCurrent ratings:\u003c\/strong\u003e 4000A peak, up to 1300A starting current, and 2060A maximum cranking current. Peak output is not a cold-cranking-amp rating.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCapacity and engine guidance:\u003c\/strong\u003e 88.8Wh internal battery; gasoline engines up to 10.0 liters and diesel engines up to 8.0 liters.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUSB power:\u003c\/strong\u003e USB-C PD30W input\/output and USB-A QC3.0 output; approximately 3.5-hour recharge with a suitable power supply.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSize and weight:\u003c\/strong\u003e 9.4 x 4.2 x 1.6 inches; approximately 2.67 lb including cables.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eKit contents:\u003c\/strong\u003e Booster, detachable boost module and clamps, carrying case, USB-C-to-USB-C cable, USB-A-to-USB-C cable, and user guide.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e Two-year limited warranty.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eBenefits\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eIndependent starting support:\u003c\/strong\u003e Bring starting power for a compatible vehicle without finding a donor vehicle.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLow-light visibility:\u003c\/strong\u003e Illuminate the connection area with the built-in light.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDevice charging:\u003c\/strong\u003e Supply USB power to compatible phones and personal electronics away from an outlet.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCharge-level checks:\u003c\/strong\u003e Read the status display before a trip so you can recharge the booster when needed.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eImportant Notes\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBattery requirements:\u003c\/strong\u003e Use only with 12V lead-acid batteries: WET, MF, Ca\/Ca, AGM, EFB, and GEL. Never boost lithium vehicle batteries, hybrids, or electric vehicles.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSafe connection:\u003c\/strong\u003e Follow both manuals and the vehicle's specified jump-start connection points. Never boost a frozen or damaged battery.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeather protection:\u003c\/strong\u003e IP65 applies only with all interfaces closed, not while connected for use.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCharging equipment:\u003c\/strong\u003e The wall power adapter is sold separately. This jump starter does not replace a battery charger or storage maintainer.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 style=\"color: #ff2a00;\"\u003eCORVETTE COMPATIBILITY\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBefore ordering:\u003c\/strong\u003e Confirm a compatible 12V lead-acid battery and non-hybrid vehicle; engine displacement alone does not establish compatibility.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExcluded vehicles:\u003c\/strong\u003e Corvette E-Ray and ZR1X, lithium battery conversions, and 6V electrical systems.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eWhy Buy This Product from Custom Corvette Accessories\u003c\/h3\u003e\n\u003cp\u003eAt Custom Corvette Accessories, we're Corvette owners ourselves, and we offer one-on-one customer service to help you choose accessories for your car. Have a question about the CTEK RB 4000 40-624 for your Corvette? Contact us with your model year, trim, and battery type for personal help before you order.\u003c\/p\u003e","brand":"CTEK","offers":[{"title":"Default Title","offer_id":68189868425453,"sku":"40-624","price":399.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1359\/4413\/files\/ctek-rb-4000-40-624-portable-jump-starter.webp?v=1793912663","url":"https:\/\/www.corvettepartsandaccessories.com\/products\/ctek-rb-4000-portable-battery-booster-40-624","provider":"Corvette Parts from Custom Corvette Accessories","version":"1.0","type":"link"}