7 hours
You can but the charge will not last as long the phone will go dead faster
A Sanyo phone battery last just about as long as any other battery. Most batteries are manufactured by just a few different manufacturers, and then rebranded.
as long as its specific model's batteries last between charge's depending on the use of flash. read your phone manual
NiMh runtime is about reported to be around two hours.
not long
Rechargeable batteries do wear out usually after their self life or prolonged use. Depending on how long you have had that particular battery and how many times it has been recharged determines how long they will last.
Usually the battery brand does not matter. As long as the replacement battery is an exact match (shape, configuration, voltage, amperage, etc.) it should work.
It all depends of the type of batteries and what you areusing them in.
about an hour
Alkaline batteries usually do not last very long, while lithium batteries usually last a little bit longer and can handle colder weather. Rechargeable batteries are probably the best as they can be recharged easily and last a long time because of this.
Rechargeable batteries usually last 300 to 500 cycles which is when a battery is at 100%, then is drained to 0% and charged again. Even if you do not drain it completely and recharge the battery, it is still considered a cycle.
This is not necessarily true. Usually the brand of battery is not as important as the technology used. An alkaline battery should last longer than a regular carbon battery, no matter what the brand.