Dabbe Par Likhi Capacity Aur Asli Capacity Mein Farq
Power bank ke dabbe par jo 20000mAh likha hota hai wo us ke andar ki cells ki capacity hai, jo 3.7 volt par napti hai. Aap ka phone 5 volt par charge hota hai. Jab power bank 3.7V ko 5V mein badalta hai to mAh ki tadaad khud bakhud kam ho jati hai — ye kisi dhoke ki wajah se nahi, physics ki wajah se hai.
Simple hisaab: 20000mAh x 3.7V = 74Wh (kul energy). 5V par ye energy 74 / 5 = 14800mAh ke barabar banti hai. Phir conversion mein 10-15% energy zaya bhi hoti hai. Yani aik ache 20000mAh power bank se asal mein taqreeban 12500-13500mAh milta hai — itna ke 5000mAh battery wala phone aaram se 2.5 se 3 dafa charge ho jaye.
Apne Phone Ke Charges Kaise Andaza Lagayein
- Apne phone ki battery capacity dekhein (maslan 5000mAh).
- Power bank ki likhi capacity ko 0.62 se zarb dein (20000 x 0.62 = 12400mAh andazay ke liye).
- Usay phone ki battery se taqseem karein (12400 / 5000 = taqreeban 2.5 charges).
Agar koi power bank is hisaab se bohat zyada charges ka dawa kare to samajh jayein ke dawa jhoota hai.
Nakli Capacity Wale Power Bank Ki Pehchan
- Wazan bohat halka — asal 20000mAh power bank ka wazan aam tor par 300-350 gram hota hai. Jo bohat halka ho, us mein cells kam hain.
- Qeemat ghair-maqool sasti — bohat sasta 20000mAh aam tor par andar se 5000-8000mAh nikalta hai.
- Naam-na-china brand, koi warranty nahi — ache brands apni rated aur actual capacity ki tafseel chhupate nahi.
- Indicator jhoota — 4 lights jaldi jaldi gir jayein aur aakhri light par phone adha bhi charge na ho, ye nakli capacity ki nishani hai.
- Bohat garam hona — kamzor cells zyada garam hotay hain aur jaldi phool bhi sakte hain.
Khareedne se pehle ki mukammal checklist ke liye hamari Power Bank Khareedne Se Pehle Ye 9 Cheezein wali guide parhein.
10000mAh Ya 20000mAh — Asli Capacity Ki Nazar Se
Agar roz ka istemal hai aur phone aik dafa charge karna hai to asal 10000mAh (asal istemal mein ~6200mAh) kaafi hai. Safar ya load-shedding mein zyada backup chahiye to 20000mAh behtar hai. Dono ka tafseeli muqabla hamare 10000mAh Ya 20000mAh Power Bank? wale article mein maujood hai.
Aakhri Mashwara
Power bank hamesha mAh ke daway ki bajaye brand, warranty aur wazan dekh kar chunein. Online khareedte waqt seller ki rating aur return policy lazmi check karein — is ke liye Online Mobile Accessories Khareedte Waqt Dhoke Se Kaise Bachein wali guide madad degi.
Aksar Pooche Jane Wale Sawal
Kya har power bank ki asli capacity kam hoti hai?
Ji, conversion ki wajah se har power bank ki usable capacity likhi hui se kam hoti hai. Farq ye hai ke acha brand ye baat wazeh batata hai, nakli wala chhupata hai.
Power bank purana ho to capacity kam ho jati hai?
Ji, cells waqt ke sath kamzor hote hain. 1-2 saal ke heavy istemal ke baad 10-20% kami aam baat hai.
Kya power bank ko full charge karke rakhna chahiye?
Lambe arse rakhna ho to 50-70% charge par rakhein, garam jagah se door.