Your next buying step
CTEK CS ONE (Gen 2) NA 12 V battery charger
Model: CS ONE (Gen 2) NA · US configuration
Your choices from the finder
Review the product, then choose a seller
Compare offers for this model
A portable 12 V, single-output AC charger and maintainer rated at 8 A for documented 3–180 Ah lead-acid and LiFePO₄ batteries. Its separate app-controlled SUPPLY, WAKE UP and RECOND functions have different limits from ordinary automatic charging.
Search this model on Amazon ↗Search results may include other models. Confirm the exact model, size and included accessories before ordering.
As an Amazon Associate I earn from qualifying purchases. Buying links on BuyerShortlists may be affiliate links.
Assessment scenario: Compare this exact model
Check the exact model and configuration against your choices, then compare the seller and offer details.
Explore this buying guide ↗Why consider this model?
- A portable one-battery 12 V choice when an 8 A maximum charge rate is within the battery maker's limit and the battery falls within CTEK's stated 3–180 Ah range. The exact North American manual and product sheet document separate lead-acid and LiFePO4 coverage plus automatic maintenance.
Tradeoffs to weigh
- This is not a 6 V, 24 V, multibank or onboard unit. Its ordinary lithium-charge BMS requirement is not established, so a requested BMS condition remains unmatched; the manual does require a BMS for the specified deeply discharged LiFePO4 SUPPLY/WAKE UP cases. SUPPLY is app-controlled vehicle-support mode, not a documented general DC accessory outlet. RECOND is not for AGM, GEL or LiFePO4. IP65 does not override the manual's do-not-expose-to-rain-or-snow warning.
Check these before ordering
- Confirm the exact model, generation, size and configuration in the offer.
- Compare your selected requirements with the detailed review before ordering.
- Check included accessories, seller, current availability and return terms.