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alenK

Lectrosonics SR9VBP battery pack

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Hi,

 The Lectrosonics SR9VBP battery pack seems like a clever backup system for use with devices that use SONY L series 7.2vDC batteries. 

 

 Does it just place two 9vDC batteries in parallel for or is there some sort of regulation?

 

 Thank you.

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Hi Alen,

The batteries are simply in parallel. There is no regulation, as the SR series has regulation built in. A regulator in the battery pack would just be a waste of power (and money). This pack was seen a quick way to run off batteries from the drugstore, if there were no power or time for recharging the L series batteries.

Best Regards,

Larry Fisher

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Hi Larry,

 Thank you for the helpful information. The battery pack seems like a great idea for quick backup power.

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Keep in mind, the SRs draw relatively low current (~150mA, IIRC), which works well with 2 9V cells.  If you try it with other equipment that takes an L-Mount, say a Sound Devices 7-Series or 6-Series recorder, your run time would be measured in minutes.  Also, if said equipment had internal charging for the L-Mount, like the 7-Series, that would cause problems as well.

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I hacked ( iwarranty voiding- hard to reverse i am sure) ) mine to run in series and have higher voltage... .  More as an experiment- my goal was to use it as short term battery source for SL-6/688 setup and have more than a few seconds between power down on the SL-6 on a battery change.  More of an emergency backup that allowed me to get several minutes( with two fresh ipowers) so that a panicked battery change has less panic.  If Sl-6 battery change is not done quickly and shuts down-  the entire rig needs to rebooted to "resync" the SL-6 so that it passes audio again...    Just trying to avoid having to carry two NP-1s....   

 

 

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2 hours ago, Matt Mayer said:

Keep in mind, the SRs draw relatively low current (~150mA, IIRC), which works well with 2 9V cells.  If you try it with other equipment that takes an L-Mount, say a Sound Devices 7-Series or 6-Series recorder, your run time would be measured in minutes.  Also, if said equipment had internal charging for the L-Mount, like the 7-Series, that would cause problems as well.

Thanks for the safety warning.

LEF

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