RAVPower 10400mAh 2A Input, 3.5A Dual USB Output Power Bank External Battery Pack Portable Charger with iSmart Technology – White
For $14.99, enter Coupon Code 0210CLS02 to get 25% off makes it $11.25 Free Shipping. I think the coupon is one time use.
https://www.newegg.com/Product/Pr…000Y-000A1
2A Input & 3.5A Output
Exclusive iSmart Technology
Large Capacity
Unique Design: Smooth, ebony varnish allows you to power up in style, while 4 status LEDs keep you informed of remaining battery capacity
Safety Protection
Premium LG/ Panasonic battery cell
What’s In the Box:
1 x RAVPower 10400mAh Portable Charger
1 x Micro USB Cable
1 x User Manual
1 x Warranty Card
Specification
- Input: 5V/2A
-Output: 5V/3.5A with iSmart
RAVpower Product Page
https://www.ravpower.com/10400mah-portable-charger-power-bank-white-new.html
I recommend charging this battery with a 5V/2A charger, not 5v/1A (iPhone original charger.)
I have tried Anker E3 (returned for refund,) RavPower 10500 mAh (gifted to a friend.)
and Mi Power bank (keeper, Mi power bank still Running great after 3.5 yrs. I keep it charged at least at 50% level for storage and never deplete/discharge below 20%.)
@newegg
Other power banks/ battery packs that can use the 25% off coupon 0210CLS02
I tried to list all the 25% off eligible battery packs here but some brands are being blocked by this site. In addition, due to the Repost rule, a couple links have also been deleted (O*rico)
I have tried my very best to list all of the 25% off eligible power banks here from newegg.
If I were u and want to find out more, search power banks on newegg.com and select Discount item on the right hand column and click apply. You will see all the 25% off eligible items.
Good Luck Guys n Gals!
Some deals offer Free shipping.
Works Power 10000 mAh Power Bank Dual Power Input Mode, USB Type C Power Input or Output, QC 3.0 ready, Aluminum Casing. AC $22.49, FS and eligible for Shoprunner shipping
https://www.newegg.com/Product/Pr…6875399001
Samsung 2100mAh Universal Battery Pack, Blue/black/White AC $7.49, Shipping is $2.99
https://www.newegg.com/Product/Pr…6875972029
https://www.newegg.com/Product/Pr…6875972027
https://www.newegg.com/Product/Pr…6875972028, White is FS
LEPOW MOONSTONE White 3000 mAh Portable Charger Power Bank MS3000-W-US-01 AC $7.49, Shipping is $5.99
https://www.newegg.com/Product/Pr…6875939109
Swordfish Tech SPB-215-GR EZGO Ultra 15000mAh External Battery with build-in fast charging cable – Dark Gray or pink Color AC$14.99, FS
https://www.newegg.com/Product/Pr…6875890101
https://www.newegg.com/Product/Pr…6875890103
Swordfish Tech SPB-115-BL Ultra Bright LED Lantern with 15000 mAh External Battery – Blue Color AC $14.99, FS
https://www.newegg.com/Product/Pr…6875890095
Fremo Q-02 3200 mAh External Battery Pack Power Bank (Built-in LED Flash Light with High / Low / Strobe Modes) for iPhone 6, 6 Plus, 5S, Samsung, HTC and Other USB-Charged Devices (Gold) AC $3.74, Shipping is $0.99
https://www.newegg.com/Product/Pr…6875790021
Fremo C510 11000 mAh High Capacity External Travel Battery Pack Power Bank Dual USB Charger with LCD Power Indicator for Smartphones and More. AC $11.24, Shipping is $5.99
Buy 2 and get Free shipping.
https://www.newegg.com/Product/Pr…6875790022
Please also check out this link for POWEREX MH-8AA270-BH 2700mAh 8-Pack AA NiMH Rechargeable Batteries (Made in Japan) $15AC@Newegg , it has a couple power banks that is deleted from my post by slickdeals due to repost. It has a RAVPower 16750 battery pack.
Sold out:
Letv Super Power Bank 13400 mAh with dual outputs (Silver Only,) Faster Charging compatible, External Battery Charger for smart phones and tablets, Silver
For $14.99, enter Coupon Code 0210CLS02 to get 25% off makes it $11.25.
Shipping is $4.99
Free Shipping When you spend $25.00 or more on eligible products.
I bought two and got Free Shipping.
https://www.newegg.com/Product/Pr…6875868240
Disclaimer: I do not work for or make any money from any of these companies listed on this thread. I merely love good deal!
How to calculate theoretical USB output capacity
A simple equation can be used to convert the 3.7V into 5V.
ACTUAL 5V mAh = 3.7 X Advertised Capacity / 5
For a 10,000mAh powerbank – 3.7 X 10,000 / 5 = 7,400 mAh
So a 3.7V 10,000 mAh powerbank really only supplies 7,400 mAh at the 5V USB connection. So straight out of the box is a 23% reduction in the stated mAh. This is not the actual experienced level as there is also conversion loss.
From http://www.bixpower.co
there are a lot lot of lithium batteries on market that do not state voltage when claim their mAh ( or Ah) capacity. In these cases, most likely they measure with lithium battery cell voltage, which is 3.6V or 3.7V. By time 3.6 (or 3.7), then divided by 1000, it will be its accurate Watt-hour capacity. For example, a 10,000mAh battery actual capacity is 10000 x 3.6 /1000 = 36 Watt-hour.
You can compare two battery capacities by Amp-hour only if they have same voltages. If two batteries have different voltages, using Watt-hour will be more accurate.
1 Amp-hour battery can deliver 1 Amp current power for 1 hour.
1 Watt-hour = 1 Amp-hour x 1 Volt.
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