Charge the batteries without taking them out of the robot

Hello everyone, I am building a quadruped robot with servomotors. I will use a 7.4V lipo battery to power motors and control boards. As per title I wanted to ask how I can recharge the battery without having to take it out of the robot each time.

I was thinking of using a board like the XY L10A. But I'm not sure if that's right for me.

If you have any documentation on this or can advise me what to google for, I would be grateful.

What is the mAh rating of your battery?

2200mAh

I use this charger.
For 7.4V, (2 Cells), use 2S type.

" https://pt.aliexpress.com/item/1005004872791816.html?spm=a2g0o.order_list.order_list_main.52.227fcaa4bkmnjB&gatewayAdapt=glo2bra

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