Vivitar 1600mAh InfoLithium 7.2V H Series NP-FM500H Camera battery for Select Alpha SLRs Sakar It has an anti-slip knurling

It has an anti-slip knurling tread for improved grip

flashes after flash is fired at full output

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DIMENSIONS (BAR)

Vivitar 1600mAh InfoLithium 7.2V H Series NP-FM500H Camera battery for Select Alpha SLRs Sakar It has an anti-slip knurlingThe NP FM500 can be charged or discharged at anytime without developing memory effect. This means they never lose their ability to hold a full charge. They also display remaining battery time on the LCD as well as in the viewfinder by continuously communicating with the camcorder. InfoLithium battery packs have a built in microprocessor that accurately calculates remaining battery life in minutes. Chemistry Lithium Ion (Info) Output Voltage 8. 4V