- Reaction score
- Largo, Florida
- # of dives
- 200 - 499
Unless you watched the batteries being made, and followed every logistical stop on their way to you, then you can’t.My batteries come from a place I can rely on to be buying the real thing, not some no name eBay or Amazon reseller.
For many years, I was responsible for counterfeit component mitigation. One sure way to point out someone who had no clue what they were doing was if they were to tell you that they could ensure that they were 100% safe from counterfeits impacting their supply chain.
Yeah, without a doubt, the cold water will definitely consume more, but I wouldn’t think that 1 hour in that cold water would be enough to consume a good portion of a fresh battery. You are complaining about battery predictability, and using batteries that aren’t compatible with the “Fuel Gauge” feature. Using a battery that is compatible will help with predictability.The dive was over an hour in 6C water. I can only guess at the draw of a Perdix but this page is vaguely interesting. https://www.saftbatteries.com/energizing-iot/impact-temperature-your-iot-application’s-power-consumption/
Also, on the Shearwater site, they note that SAFTs are not compatible with the “Fuel Gauge” and are also very susceptible to temperature. SAFTs do last long, but if you can’t predict when they will be dead, is it worth it?