Just purchased one of these for $20 instead of the regular $70. Has 12/6v and LFP charging. Website says Lithium-Ion but manual says LiFePo4 charging.
https://www.duracellpower.com/colle...ucts/4-amp-battery-charger-maintainer-b-stock
https://www.duracellpower.com/colle...ucts/4-amp-battery-charger-maintainer-b-stock