How many hours of charge does a 5200 mAh battery have?

I bought a 5200 mAh back up battery for my iPhone 4 and want to know how many hours of charging it can last. Or at least know how many times it can charge a iPhone 4 from %0 to %100.

The amount of run time for a battery depends on the load (how much current you use).

5200 mAh (5200 milliamp hours) is

5200 mA * 1 hr
or
2600 mA * 2 hr
or
1300 mA * 4 hr

Get the idea

Should Only Take 3-4 Hours, But If Its Taking Longer I Would Suggest Getting A New Battery!

  • IPhone battery cases: what is the best mAh? I'm looking to buy a battery extending case for my iPhone. I'm seeing some that say 1900 mAh, 2000mAh 2500 mAh etc. I was wondering if anyone could explain what that is and which would be the best for an iPhone 4S with AWFUL battery? (It's at 100% before I go to work. It stays in my pocket for 6 hours and is down to 3%)
  • How much will a 2000 mah battery pack recharge my iPhone 4? I'm going on a trip soon, and I won't have access to chargers. I have an iPhone 4, and I'm thinking of buying a portable battery pack (2000 mah) how much will it fill the battery? Will it fill it 50%, or give it a full charge a few times?
  • How much battery life is 5200 mAh? I want to buy a portable charger for my iphone 5, it says its 5200 mAh what does that mean? And do you recommend 5200 mAh or a 2500 mAh?
  • How much 3000 mAh power bank charge my iPhone 6s plus? I'm buying Genius eco-u306 power bank its capacity is 3000 mAh. Is it worth buying? And tell me how much it will charge my iPhone 6s plus (from dead) if it will not charge my iPhone 6s plus even once suggest me some good power bank which will at least charge my iPhone for once.