Just replaced iphone 7 battery with nohon branded chinese battery (lithium polymer). User manual says the following:
"From the first time to 8th time , please use up the battery to 8%-10%. Recharge it until it is full charged and continue to charge for 30 minutes to 1 hour. (If you have a 5V/1A low current charger, please use the small current charger, if not, you can use the original charger to charge.)"