I can't figure out what that smallest battery connector type is called, it's for a blue ravin power perch and I need an extension cable.
The polarity of the middle one is backwards from that used in Featherweight (and other rocketry) products and would likely fry whatever it is connected to. You can swap the pins in the connector or make a polarity-swapping extension cable if you really want to use that battery.
Thanks so much and yes I will triple check polarity.The polarity of the middle one is backwards from that used in Featherweight (and other rocketry) products and would likely fry whatever it is connected to. You can swap the pins in the connector or make a polarity-swapping extension cable if you really want to use that battery.
The bottom one has a 1.25mm pitch connector. You can get compatible cables here:
https://www.amazon.com/dp/B07JJ4Y3DL?psc=1&ref=ppx_yo2ov_dt_b_product_details
That is the polarity used in flying models (small quadcopters mostly, but also helicopters and even fixed-wing models that use single cells). Since both the cells I already have on hand and the chargers for them are set up this way, when I built my Eggfinder IONs I put the socket on the board in the reverse of what Cris calls for, to match most of my other equipment.The polarity of the middle one is backwards from that used in Featherweight (and other rocketry) products and would likely fry whatever it is connected to. You can swap the pins in the connector or make a polarity-swapping extension cable if you really want to use that battery.
I have a Blue Raven and a Power Perch I got from Featherweight. The batteries being shipped from Featherweight now are a bit longer than the old ones they used to send out.
I say this because I also got a sled from Additive Aerospace for my A/V bay and I needed to drill a new hole for the thing that holds the battery in place. There was just enough room on the part to drill the hole near the edge and have it provide a tight fit with the new longer battery.
[I am kind of assuming that the batteries are now longer, rather than the sled having been sized incorrectly in the first place.]
https://www.additiveaerospace.com/collections/altimeter-sleds/products/98mm-dual-power-perch-sled
I think it all worked out in the end, but that part from Additive Aerospace should be sized to match up with the newest parts.
I have seen them swapped around too.The red JST connectors have always been correct.
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