Upgrade the MAH of a portable charger

Published by gadget souq in the blog gadget souq's blog. Views: 25

Recently i bought one of the best portable charger of anker brand. it is 26000mah. i opened its cover and start roughly learning about its circuit. Now i want to upgrade its power to 50000mah. Can i do it with myself?
Any body please guide me how it is possible.
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