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Why do lithium batteries use S (2S, 3S etc) to mean 'cells'? What does the S actually stand for? - Quora
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Lithium Ion Polymer Battery - 3.7v 2500mAh : ID 328 : $14.95 : Adafruit Industries, Unique & fun DIY electronics and kits
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2S Lithium-ion Battery Protection Board 7.4V 3A - Buy Li-ion-battery Protection Board at QuartzComponents.com
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Amazon.com: Rechargeable 14250 Battery and Charger,FITINOCH 1/2 AA Lithium Ion Batteries Can Replace 3.6 Volt LS 14250,ER14250,CR14250 Disposable Battery for Laser(6 Pack) : Health & Household
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