Charger for a lp803860

Hey,

I'm going to order a lp803860 battery for a faceplate for the Steam Machine (https://gitlab.steamos.cloud/SteamHardware/SteamMachine/inkterface).

I've never used a battery like that, how can I recharge it ? I've seen some charger on Amazon but I don't know what to pick (i was going to go with cheapest but I care about my home and I don't want a fire ^^).

Is there similar things (dimension-like) that is re-chargeable with simple means ?

Is there a recommended brand or model of charger to charge a battery like that ?

Thank's :)