What should I know about rechargable batteries?
With lithium ion battery equipped cameras, you should remember to charge each battery every day. The memory effect does not affect lithium ion batteries and they can be recharged from any state of discharge. Remember to recharge all your lithium ion batteries, including your spares.
For cameras that use AA batteries, switch to fully charged rechargeable nickel hydride batteries. The capacity of nickel hydride batteries can be diminished by the memory effect [If you recharge the batteries several times without completely draining their charge]. To avoid this, discharge them completely using a pocket flashlight or some other electronic device to completely drain the charge. Then you can go ahead and charge up the batteries. Charged batteries should be good for two dives but it is wise to have spares available.
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