iPhone 6s Plus has a large 2915 mAh battery but comes with a slow 5-watt charger. However, the phone also supports 12-watt (2.4 amp) fast charging. The best portable chargers for the iPhone 6s Plus support 12-watt fast-charging and should also be ideally future-proof by supporting 18-watt USB-C PD fast-charging (zero to 60% in 30 minutes) for new iPhones 12, 12 Pro/Mini, SE 2020, 11, 11 Pro, 11 Pro Max, XR, XS, X, 8, 8+.
Here’s a list of our meticulously chosen best portable chargers for your iPhone 6s Plus.
Best Future-Ready Power Bank for iPhone 6s Plus
ZMI is one of the most reputed portable charger brands, associated with world’s largest phone maker Xiaomi. ZMI 10000 USB-C PD is a future-ready compact portable charger for iPhone 6s Plus. The 10000 mAh battery capacity will charge your iPhone 6s Plus a little more than two times.
ZMI 10000 USB-C PD will charge your iPhone 6s Plus at a fast rate of from zero to 50% in about 50 minutes. The power bank itself gets recharged in just 3.5 hours with any 18 watt USB-C PD charger. It can also be charged directly with the Apple iPhone 6s Plus charger via the micro-USB cable in 11-12 hours.
The ZMI 10000 PD power bank has two input ports – the USB-C port, and the micro-USB port and hence it can be charged by using either of the two types of cables – USB-C, micro-USB.
The power bank is future-ready as it supports 18-watt USB-C PD and fast charges the latest iPhone 12, 11, 11 Pro, 11 Pro Max, XR, XS, X, 8, 8+ from zero to 60% in 30 minutes. The power bank also fast-charges almost all Samsung/LG/Moto and other Android phones. It can fully charge the latest big-screen iPhones and Android phones minimum two times.
ZMI 10000 PD also comes with a ‘low current mode’ which charges devices that require charging current less than 60 mA. It weighs around 7 oz (200 grams) and is about half inch thick making it portable.
Pros
- Charges iPhone 6s Plus more than two times
- Gives zero to 50% charge to 6s Plus in about 50 mins
- Fast-charges latest iPhone 12, 11, 11 Pro, 11 Pro Max, XR, XS, X, 8, 8+ from zero to 60% in 30 minutes.
- Can be recharged in just 3.5 hours with any 18 watt USB-C PD charger.
- Fast-charges latest Samsung phones and other Android phones.
- Can be charged via both micro-USB and USB-C cables
- Pocket-friendly design and light in weight
- Can charge two devices at once
- Reasonable price
- Low current charging mode for wireless earbuds etc.
- Comes with a USB-C to USB-C cable and a USB-C to USB-A cable
Cons
- None
Best Compact and Slim Power Bank for iPhone 6s Plus
Anker PowerCore is one of our most preferred brands of portable chargers for iPhones. Anker PowerCore 10000 Slim is Anker’s slimmest available powerbank with a thickness of just 0.55 inches (14.5 mm). It is easy to hold in hand along with the phone due to the phone type shape and grippy, soft, and textured design.
PowerCore Slim 10000 has a battery capacity of 10000 mAh which charges your iPhone 6s Plus more than twice. It supports 2.4 amp charging, the fastest charging mode supported by iPhone 6s Plus, that charges your 6s Plus from zero to 50% in about 50 mins. The portable charger will also fast charge most Android phones from zero to 50% in about 50-60 minutes.
PowerCore Slim 10000 takes minimum 7-8 hours to charge itself. It weighs 7.0 oz (200 grams) which is very convenient as portable chargers are carried around a lot.
Pros
- Slim and ergonomic design
- Easy to hold due to its phone type shape
- 2.4 amp charging– will charge iPhone 6s Plus from zero to 50% in 50 mins.
- Charges 6s Plus twice as fast as Apple 5-watt charger
- Fast-charges latest iPhone 12, 11, 11 Pro, 11 Pro Max, XR, XS, X, 8, 8+ from zero to 50% in 50-60 minutes.
- Weighs 7 oz (200 grams), easy to carry
- Also has USB-C input (for charging the power bank) as well
Cons
- Takes 7-8 hours to get recharged
Best High Capacity Future Ready Portable Charger for iPhone 6s Plus & iPads
AmazonBasics 20000 PD is an excellent power bank with almost all the features of a versatile portable charger. It supports both 18-watt USB-C PD and QuickCharge 3.0 which allows it to fast-charge both the latest iPhones and the latest Android phones.
AmazonBasics 20000 PD has the capacity to charge your iPhone 6s Plus five times! It will charge your 6s Plus from zero to 50% in about 50 mins. The power bank itself gets recharged in about 6.5 hours with a 18 watt USB-C PD charger or in 20-122 hours with the Apple 6s Plus charger. It has a USB-C port for charging the power bank and comes with the cable that can charge it. AmazonBasics 20100 PD supports USB-C PD 18 watt and 2.4 amp (12 watt) charging output.
The power bank is future-proof as it supports 18-watt USB-C PD charging used by latest iPhones and iPads. AmazonBasics 20100 PD fast charges the latest iPhone 12, 11, 11 Pro, 11 Pro Max, XR, XS, X, 8, 8+ from zero to 50% in 30 minutes.
AmazonBasics 20000 PD weighs 14 oz (390 grams) and has dimensions of 5.91″ x 3.27″ x 0.83″ (150 x 83 x 21 mm). It also has a ‘low current mode’ which outputs less than 60 mA of current for low-power devices (fitness trackers, smart watches, etc.).
Pros
- Will charge your iPhone 6s Plus more than 5 times
- Gives zero to 50% charge to the 6s Plus in about 50 minutes
- Fast-charges latest iPhone 12, 11, 11 Pro, 11 Pro Max, XR, XS, X, 8, 8+ from zero to 60% in 30 minutes.
- Can also be charged directly via Lightning port with Apple iPhone 6s charger in 20-22 hours
- Can be recharged in just 6.5 hours with any 18 watt USB-C PD charger.
- Very reasonable price
- Three ways of charging the power bank by included USB-A to USB-C cable
- Weighs 14 oz (390 grams)
- Low current charging Mode
- Comes with 24-month product replacement warranty
Cons
- No USB-C to USB-C cable included
Best Ultra-Compact Powerbank for iPhone 6s Plus
Anker is an outstanding portable charger brand with some amazing power banks under its name. Anker PowerCore 6700 is one of our most preferred compact power banks due to it 4.2 oz (120 grams) weight. It has a battery capacity of 6700 mAh and can fully charge your iPhone 6s Plus from 20% to 100% two times. PowerCore 6700 has a small body which makes it easy to carry.
The speed of charging is also excellent. PowerCore II 6700 can charge your iPhone 6s Plus from zero to 50% in about 1 hour. PowerCore 6700 has a micro-USB port for charging the powerbank. The power bank itself will get fully charged in about 3 hours with a 2.4 amp charger and in 7 hours with the Apple iPhone 6s Plus charger.
The power bank also has a very striking 6 point LED battery status indicator on the power button that shows the battery level of the portable charger.
Pros
- 4.2 oz (120 grams) weight makes it very convenient to carry
- 2.4 amp charging support
- Charges iPhone 6s Plus from zero to 50% in about 1 hour
- Charges all iPhones (6/6 Plus and later) at 2.4 amp charging speeds
- Comes with 6 point bright LED battery indicator
- Has a sleek design and small size
- Robust build quality
- Reliable Anker warranty and customer service
Cons
- Cannot be charged with Lightning cable