How long should i charge iphone 5s for the first time?

Ok Seniors I got it 🙂

https://www.apple.com/in/batteries/why-lithium-ion/

Charge your Apple lithium-ion battery whenever you want. There’s no need to let it discharge 100 per cent before recharging. Apple lithium-ion batteries work in charge cycles. You complete one charge cycle when you’ve used (discharged) an amount that equals 100 per cent of your battery’s capacity — but not necessarily all from one charge. For instance, you might use 75 per cent of your battery’s capacity one day, then recharge it fully overnight. If you use 25 per cent the next day, you will have discharged a total of 100 per cent, and the two days will add up to one charge cycle. It could take several days to complete a cycle. The capacity of any type of battery will diminish after a certain amount of recharging. With lithium-ion batteries, the capacity diminishes slightly with each complete charge cycle. Apple lithium-ion batteries are designed to hold at least 80 per cent of their original capacity for a high number of charge cycles, which varies depending on the product.

https://www.apple.com/in/batteries/why-lithium-ion/

“Battery life” is the amount of time your device runs before it needs to be recharged. “Battery lifespan” is the amount of time your battery lasts until it needs to be replaced. Maximize both and you’ll get the most out of your Apple devices, no matter which ones you own.

Further you can look for what you can do to increase your battery's life within the same link.

At no point I could find anything advising draining battery for full or charging it after 100%.

It is not about agreeing or disagreeing with anybody. It is about getting cleared on something. Further help is welcome.

Thanks.

A year and a half late, but thank. Someone may find it useful if they look back here.

Cheers

Pete

Yeah. You're **** rìte. I just bought an Iphone 5s yesterday. Thank you guys for all the information.