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Plugging in an extra battery pack to the R900S receiver?

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Old 05-08-2004, 05:04 AM
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Langster
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Default Plugging in an extra battery pack to the R900S receiver?

Hi Danny,

Is it possible to plug in an extra battery pack to an R900S JR receiver? I have upgraded the number of servos in my new model and they are now all almost all completely digital (x6). Otherwise, can I parallel similar receiver battery packs somehow?

Thanks for any help.

Langfire
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Old 05-10-2004, 08:48 AM
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Default RE: Plugging in an extra battery pack to the R900S receiver?

I don't have any information on that particular receiver, however running 2 packs in parallel should work fine, just plug the 2nd into a spare channel in the receiver. I recommend also adding a voltage regulator between each switch and the receiver to prevent any backfeeding between the 2 battery packs.
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Old 05-10-2004, 05:47 PM
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Default RE: Plugging in an extra battery pack to the R900S receiver?

Hi Danny,

Thanks very much for your reply. Why would I need to use a voltage regulator (I'm using 4.8v) and where can I purchase same?

Thanks

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Old 05-17-2004, 09:37 AM
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Default RE: Plugging in an extra battery pack to the R900S receiver?

The voltage regulator is required due to the reasons above, to prevent any backfeeding from one pack to the other. Without either a regulator or a diode in line of both packs, the packs will fight each other and drain faster, and also if one pack has a cell reversal, it will drain the other wihout one. Here in the US there are several regulators from various brands available such as custom electronics, but I'm not sure what is available in your area.
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Old 05-18-2004, 05:26 AM
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Default RE: Plugging in an extra battery pack to the R900S receiver?

Hi Danny,

Thanks for the feedback. I'll do a search and find out what's available locally.

Cheers

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