CTEK 40-658 NXT 5 Fully Automatic 4.3 amp Battery Charger and Maintainer 12V

Name: CTEK 40-658 NXT 5 Fully Automatic 4.3 amp Battery Charger and Maintainer 12V
Brand: CTEK
SKU: awhd-us-b0g1tvwk2p
Price: 109.25 USD
Availability: InStock

Brand: CTEK

Condition: Used

$109²⁵

$121⁰⁰

-10% Save $11⁷⁵

Updated: 2 days ago

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Description

All-in-one 12 V charger: Supports lead-acid (WET, MF, Ca/Ca, AGM, EFB, GEL) and lithium-ion (LiFePO₄) batteries from approx. 1.2 Ah up to 160 Ah.

“Connect & Forget” convenience: Fully automatic operation — simply connect, select the mode, and let it manage the rest; great for cars, motorcycles, seasonal storage and more.

Safe, user-friendly design: Spark-free operation, reverse polarity protection, compact robust housing (IP65 rated), and included Connect U-terminal for a permanent battery mount.

Revives & reconditions exhausted batteries: Built-in desulphation and “Recond” modes recover deeply discharged or sulphated lead-acid batteries — extending battery life and performance.

Automatic temperature compensation: Smart temperature sensors adjust the charging voltage for extreme hot or cold conditions (-4 °F/ -20 °C to +122 °F/ +50 °C) for optimal results.

*Recondition your battery once per year and after deep discharge to maximize lifetime and capacity.

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Product Details

SKU:: awhd-us-b0g1tvwk2p
Model:: 40-658
Country:: US
ASIN:: B0G1TVWK2P

Shopping Smarter

Common questions about buying open-box and refurbished.

Why buy refurbished or open-box?

Refurbished and open-box products offer the same performance as new at a fraction of the price. You're already saving $12 on this listing. They've been inspected, tested, and are ready to use — the only difference is the price tag. Buying refurbished also reduces electronic waste, extending product life cycles and keeping functional devices out of landfills.

What's the difference between open-box and refurbished?

Open-box products are customer returns that have been inspected and confirmed functional. They may show little to no use — often the item was returned simply because the buyer changed their mind. Refurbished products have been professionally repaired or restored by technicians, tested to meet or exceed manufacturer specifications, and sometimes come with a warranty. Both are a smart alternative to buying new.

Why use OpenBoxFox?

Finding refurbished deals is time-consuming — you'd have to check Amazon Warehouse, Reebelo, Dyson Outlet, and others separately for CTEK products. OpenBoxFox aggregates these listings in one place, so you can compare and find the best deal without the legwork. We update pricing daily so you always see current availability and real savings.

Is it safe to buy refurbished?

Yes. Products listed on OpenBoxFox come from established retailers like Amazon, Reebelo, and Dyson — not unknown third-party sellers. Each retailer has buyer protection policies, return windows, and in some cases warranties. You get the price advantage of used goods with the purchase security of a known retailer.