Six (6) Used DJI Phantom 4 Batteries for Sale – Reduced to $350 OBO delivered in USA

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Six (6) used DJI P4P batteries for sale - OEM 15.2V, 5870mAh. They all charge fully. No cracks or damage. They all swell after running in the drone, and some of them swell a little after being charged. Some can be difficult to remove from the drone until they cool and contract. No warning messages when flying, but I stop flying batteries when they start to swell. I then use them for bench and programming purposes or I sell them, like now. I do not guaranty anything about the condition, performance, or longevity of any of the batteries.

Charge cycles of 48, 48, 44, 69, 66, and 67. Each of their cells are within 0.02 volts or less of each other except one - Bat #5 has a 0.05V deviation on cell #2. See the attached DJI Go 4 screenshots for the status of each battery as of 09/18/21.

Feel free to contact me here or via the contact information at www.wavepilot.com. Thank you.
 

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Joined
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Messages
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Location
Jax Beach, FL
anyone have any ideas why these started to have swelling issues with so few charge cycles?
I've speculated that operating an Obsidian in the hot Florida summer sun accelerated the batteries' decline, along with the aircraft, the RC, the iPads, and the CrystalSky. I've now adopted the practice of flying the Obsidian only in the cooler winter months and flying only white P4Ps in the blazing summers. I've definitely noticed less swelling and fewer equipment glitches like latency, signal warnings and such. Heat bad.
 

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