{"product_id":"ctek-nxt-5-12v-4-3a-battery-charger-maintainer-fully-automatic-ip65-desulphation","title":"CTEK NXT 5 12V 4.3A Battery Charger \u0026 Maintainer — Fully Automatic, IP65, Desulphation","description":"\u003cp\u003e\u003cstrong\u003eThe CTEK 40-658 NXT 5 is a fully automatic 12V, 4.3A battery charger and maintainer that safely charges, reconditions and maintains lead‑acid and LiFePO₄ batteries with a connect‑and‑forget workflow.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eDesigned for vehicle owners, hobbyists and storage situations, the NXT 5 combines versatile battery chemistry support with smart temperature compensation and safety features. It works with small starter batteries up to 160 Ah, offers desulphation and reconditioning modes for tired lead‑acid batteries, and includes an IP65‑rated housing plus a Connect U‑terminal for convenient permanent mounting.\u003c\/p\u003e\n\n\u003ch3\u003eHow does the NXT 5 simplify routine charging?\u003c\/h3\u003e\n\u003cp\u003eCTEK built the NXT 5 for minimum user interaction: choose the correct program for your battery and the charger handles the rest, including switching to maintenance when charging completes. Its automatic algorithms protect batteries from overcharge and ensure a healthy float voltage for long‑term storage.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eFully automatic multi‑stage charging from bulk to maintenance\u003c\/li\u003e\n  \u003cli\u003eMaintains battery charge for seasonal vehicles and storage\u003c\/li\u003e\n  \u003cli\u003eConnect U‑terminal enables easy, permanent battery connection\u003c\/li\u003e\n  \u003cli\u003eSpark‑free reconnection and reverse polarity protection\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eCan it revive or recondition an old or deeply discharged battery?\u003c\/h3\u003e\n\u003cp\u003eYes — the NXT 5 includes desulphation and Recond modes that gently attempt to recover lead‑acid batteries suffering from sulphation or deep discharge. These recovery functions can restore capacity and extend usable life, but results depend on the battery’s condition and age.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eDesulphation pulses to break down sulphate crystals\u003c\/li\u003e\n  \u003cli\u003eRecond mode applies a controlled higher voltage to balance and rejuvenate cells\u003c\/li\u003e\n  \u003cli\u003eRecommended: recondition annually or after deep discharge\u003c\/li\u003e\n  \u003cli\u003eNot a guaranteed fix for permanently damaged batteries\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat battery types and sizes does this charger support?\u003c\/h3\u003e\n\u003cp\u003eThe NXT 5 works with a wide range of lead‑acid batteries (WET, MF, Ca\/Ca, AGM, EFB, GEL) and with lithium‑iron‑phosphate (LiFePO₄) chemistry. It handles batteries from approximately 1.2 Ah up to 160 Ah and provides safe charging for small starter batteries as well as batteries in motorcycles, cars, ATVs and garden equipment.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eCompatible chemistries: lead‑acid varieties and LiFePO₄\u003c\/li\u003e\n  \u003cli\u003eRated for battery capacity: ~1.2 Ah to 160 Ah\u003c\/li\u003e\n  \u003cli\u003e4.3 A maximum charge current suitable for regular maintenance\u003c\/li\u003e\n  \u003cli\u003eProgrammable modes to match battery type and condition\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow does it perform in extreme weather and harsh environments?\u003c\/h3\u003e\n\u003cp\u003eCTEK equipped the NXT 5 with automatic temperature compensation and robust IP65 protection so it can operate reliably in cold winters and hot summers. The charger adjusts charging voltage based on ambient temperature to avoid under‑ or overcharging, and its sealed casing resists dust and water spray.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eTemperature range: -20 °C to +50 °C (-4 °F to +122 °F)\u003c\/li\u003e\n  \u003cli\u003eAutomatic temperature compensation for optimal voltage control\u003c\/li\u003e\n  \u003cli\u003eIP65‑rated housing for dust and water spray resistance\u003c\/li\u003e\n  \u003cli\u003eCompact, impact‑resistant enclosure for workshop or garage use\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for? The CTEK NXT 5 40‑658 is a strong fit for car and motorcycle owners, seasonal vehicle users, fleet vehicles, and anyone who wants a reliable, safe charger to maintain batteries during storage or regular use. It’s especially valuable if you need a charger that can attempt recovery of sulphated lead‑acid batteries while offering universal chemistry support and a simple connect‑and‑forget user experience.\u003c\/p\u003e\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Will the NXT 5 work with LiFePO₄ batteries?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes. The NXT 5 supports LiFePO₄ batteries and several lead‑acid types; select the correct mode for safe charging.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Can it revive a sulphated car battery?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: It has desulphation and Recond modes that can restore some sulphated lead‑acid batteries, though results vary by battery condition.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"CTEK","offers":[{"title":"Default Title","offer_id":67584879493305,"sku":"B0G1TVWK2P","price":253.66,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0822\/3765\/3177\/files\/ctek-nxt-5-front-view.jpg?v=1790457376","url":"https:\/\/redleafauto.ca\/products\/ctek-nxt-5-12v-4-3a-battery-charger-maintainer-fully-automatic-ip65-desulphation","provider":"Redleaf Auto","version":"1.0","type":"link"}