4v Lead Acid Battery Charging Use 6v Solar Panel with TP4056 Module

how to charge the 4v lead-acid battery using 6v 70ma solar panel with 1s TP4056 1A Li-Ion Lithium Battery charging with Current Protection module 

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1) TP4056 Li-ion Battery Charging with Protection Board 

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2) 4v lead-acid battery

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3) 6v solar panel

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