Please note that this is a lithium-based battery and it is important to take care while using, storing, and charging this battery, please see thislithium battery guidefor more information.
Lithium-Ion batteries should never be kept loose in your pocket or purse.
Welcome to the world of high-voltage anxiety. The Molicel P42A is the gold standard for anyone who thinks ‘standard’ 18650s are a bit too 2015. It’s got more punch than a heavyweight boxer with a grudge and enough capacity to keep your long-range cruiser in the air longer than your attention span allows. Yes, we know youre just here for the 45A rating. Just try not to turn your drone into a very expensive flare, alright? This is the lithium equivalent of a double espresso for your motors, designed for those who value performance over, well, safety margins.
Why You Want It
You want it because your current batteries sag harder than a middle-aged man’s back after a light jog. The P42A offers a mythical balance of 4200mAh capacity and a 45A discharge rate that actually works. Most batteries lie to you like a Tinder profile; the Molicel actually shows up and does the work. Whether you are building a 7-inch long-range beast or a DIY power wall in your shed (please be careful), this is the cell that won’t leave you stranded in a damp field in the middle of the UK.
Specs
Model: INR21700-P42A (The one the cool kids use)
Capacity: 4200mAh (Actual capacity, not ‘wishful thinking’ capacity)
Max Discharge Current: 45A (Enough to make your wires sweat)
Minimum Discharge: 2.5V (Go lower and you’ve bought a very expensive paperweight)
Terminal: Flat Top (No, it won’t fit in your TV remote)
Chemistry: Li-ion (The science-y bits)
Protection: None (Living life on the edge, are we?)
Weight: 66.5g (Light enough for your quad, heavy enough to feel premium)
Dimensions: 21.2mm x 70mm
Origin: Made in Taiwan
In the Box
1x Molicel P42A 21700 Battery (Dignity not included)
Compatibility
Perfect for high-power FPV drones, long-range wings, DIY electric skateboards, and people who enjoy building their own battery packs while questioning their life choices. Fits most 21700-sized holders and frames.
Highlights
High Discharge: 45A of ‘I hope I soldered those XT60s correctly’ power.
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