No it is not suitable for battery life because even if you charge with 5W 2A charger also it will take around 3 hours 30 to full charge from zero to hundred samsung doesn't provide that feature unlike google apple which usees AI ti detect our charging habits like if you plug your phone to charge for whole night then after few days google and apple phone adopts the night charging it will charge 0 to 100 from early night to the morning which you can't do in samsung but if your device running on one ui 4.1 then protect battery feature of device care limits your charging when you device reaches 85% it not will charge more than that if you keep in charging for five hours it is good for battery life also give it a try
