What does the RECOND option do and when should I use it?
The RECOND option is used for reconditioning deeply discharged and stratified batteries, helping to revive and restore them. It is Step 6 in the 8-step charging process and can be selected individually or combined with the AGM option. (Page 1 & 2)
From the official Ctek Ctek Mxs 5 0 Battery Charger User manual, page 1
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