mAh ko runtime ghanton mein kaise badlein?

Capacity ko average current se bhaag dijiye: 3000 mAh par 200 mA yaani kaagaz par 15 ghante. 80 se 90% usable capacity ka factor lagaiye aur lagbhag 12.75 ghante bachte hain.

mAh aur Wh mein kya farq hai?

mAh charge naapta hai aur bina voltage ke matlab nahin rakhta; Wh energy naapta hai aur alag voltages ke beech tulna ho sakti hai. Amp-hours ko volts se guna kijiye: 3 Ah par 3.7 V = 11.1 Wh.

C rate ka matlab kya hai?

Ye discharge current capacity ke gunak ke roop mein hai. 3000 mAh cell par 3000 mA yaani 1C; capacity ratings 0.2C se 1C par naapi jati hain, aur usse upar milne wali energy kam ho jati hai.

Duty cycle itna zaroori kyun hai?

Jo sensor har minute ek second jagta hai wo lagbhag poora sleep current hi kharch karta hai. Sleep draw 1 mA se 10 µA karne par device hafton se saalon tak chal sakta hai.

Battery Life Calculator

Capacity, voltage aur load se aisa runtime nikaliye jis par bharosa ho — derating aur duty cycle ke saath.

Battery Life Calculator aapke browser mein chalta hai. Aapke aankde kabhi upload nahin hote.

Ohm’s Law Calculator kholiye

Battery Life Calculator ke baare mein

Runtime capacity bata draw hai, par is sum ka seedha roop hamesha zyada bata deta hai. Koi bhi battery asli circuit mein apni rated capacity nahin deti — regulator loss, self-discharge aur cut-off voltage hissa le lete hain, isliye 80 se 90 pratishat usable capacity ganit mein aani chahiye. Doosra sudhaar duty cycle hai: zyadatar devices apna jeevan sote hue bitate hain, isliye active aur sleep current ka weighted average maayne rakhta hai, peak nahin.

Features

Capacity aur load se runtime ghanton, dinon ya saalon mein
Cell chemistry ke hisaab se usable capacity derating
Active aur sleep current ka duty-cycle average
Draw milliamps ya watts mein, pack voltage par convert
Watt-hours mein energy aur discharge C rate
Power bank se asli charges, losses ke saath

Battery Life Calculator kaise use karein

Capacity mAh mein aur nominal voltage daaliye
Realistic usable capacity ke liye chemistry chuniye
Active draw, sleep draw aur jagne ka samay daaliye
Runtime aur uske peeche ke aankde padhiye

Example

Input

3000 mAh at 3.7 V · 200 mA active · 85% usable

Output

11.1 Wh · 2550 mAh usable · 12 h 45 min at 0.067C

Derating hi wajah hai ki 3000 mAh par 200 mA se 12.75 ghante milte hain, 15 nahin.

Common errors aur troubleshooting

Device calculate kiye samay se pehle band ho jata hai. — Peak draw aam taur par aapke diye average se zyada hota hai aur thand usable capacity kaafi ghata deti hai. Asli load par current naapiye aur sardi mein 70% par aa jaiye.
10,000 mAh power bank 4,000 mAh phone ko do baar charge nahin karta. — Cells 3.7 V ki hain aur USB output 5 V, isliye sirf conversion 20% le leta hai, aur phone ka charging circuit aur leta hai. Do se dhaai charge asli aankda hai.
Chhoti cell par C rate warning aa gayi. — 1C se upar khinchne ka matlab hai datasheet ki shart se zyada maang, isliye milne wali capacity gir jati hai. Bada pack ya high-discharge cells lijiye.

Aksar pooche jaane wale sawaal

mAh ko runtime ghanton mein kaise badlein?: Capacity ko average current se bhaag dijiye: 3000 mAh par 200 mA yaani kaagaz par 15 ghante. 80 se 90% usable capacity ka factor lagaiye aur lagbhag 12.75 ghante bachte hain.
mAh aur Wh mein kya farq hai?: mAh charge naapta hai aur bina voltage ke matlab nahin rakhta; Wh energy naapta hai aur alag voltages ke beech tulna ho sakti hai. Amp-hours ko volts se guna kijiye: 3 Ah par 3.7 V = 11.1 Wh.
C rate ka matlab kya hai?: Ye discharge current capacity ke gunak ke roop mein hai. 3000 mAh cell par 3000 mA yaani 1C; capacity ratings 0.2C se 1C par naapi jati hain, aur usse upar milne wali energy kam ho jati hai.
Duty cycle itna zaroori kyun hai?: Jo sensor har minute ek second jagta hai wo lagbhag poora sleep current hi kharch karta hai. Sleep draw 1 mA se 10 µA karne par device hafton se saalon tak chal sakta hai.

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