Smart Charger Compatibility: Not All Chargers Work with LFP

Created by Scott Chen, Modified on Thu, 19 Feb at 12:43 PM by Scott Chen

ABYC Reminder: Not All Smart Chargers Are Suitable for Lithium Batteries

Can I use my existing smart charger?
Only if it has a Lithium (LiFePO₄) mode or adjustable voltage ≤14.6 V with no equalization or desulfation. Many lead-acid smart chargers are not suitable.

If the charger does not explicitly say Lithium / LiFePO₄, assume NOT compatible.

Lynac Cranking Series

Compatible Chargers

Use a charger that meets **all** of the following:

Charge voltage ≤ 14.6 V

No "equalization" mode

No "recondition / desulfation"mode

Float ≤ 13.6 V or float **disabled**

Alternator Charging

Vehicle/engine alternators are generally acceptable when:

*Regulated output **13.8 – 14.4 V**

* No smart-alternator spikes** or boost events above 14.6 V

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✔️ Quick Dealer Check

If the charger has a **Lithium (LiFePO₄) mode**, it is typically compatible with Lynac cranking batteries.