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SSM transmitter battery life


LarryF

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The 4 hour battery life on the SSM was the drawback that kept being repeated (politely) in threads and posts. We found a different battery that is 10 thousandths thicker but has 40% more capacity. At the same time, we added a new power supply chip that can run both buck and boost. So it can provide 3.3 Volts whether the battery is a fresh charged 4.2 Volts or nearly run down at 3 Volts. Note that one voltage case is higher than the desired output of 3.3 Volts and the other case is below. Hence a buck and boost power supply. That additional range gives us about another 10% of battery life. All in all, the SSM battery life is now 6 hours and 1 minute, worst case drain. We fought for that minute so the sales hawksters could claim "more than 6 hours". We had to scrap the original cases and start machining all over again since the contacts are spaced a little differently and this will add 2 weeks to the release.

I would have added this to the previous thread but JWS is a little confusing today.

Best Regards,

Larry Fisher

Lectrosonics

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