How to Find and Buy Best Battery Backup Phone Buyer’s Guide (2018 Update)

Dual fast charging: with dual usb outports of rechargeable battery powers up to 2 smartphones or tablets at once, portable external battery pack perfect for travel. Massive powerful 12000mah power: high capacity portable battery power pack recharges your iphone 8 5.2 times, a galaxy s8 for 3.2 times, or an ipad air more than one full charges. Jackery giant+: the most high quality reviews in all amazon 12000mah power bank. What’s included: 1, jackery giant+ 12.000mah portable charger.1, micro usb 2.0 charging cable.1, user guide & warranty.1, thank you card. 24-month product warranty and 7 24 hrs friendly customer service.

A life saver for emegency: keep a charger handy in an emergency, using it get emergency information and alerts or warnings from mobile or social media; built-in flashlight light up the darkness and keep you safe in darkness or emergency place or when a light is needed.

Colossal battery: 22000mah capacity charges an iphone x for 4.9 times, a galaxy s8 4.4 times, or an ipad mini 4 2.6 times; fully recharge in just 11-12 hours with a 2.4a charger. What you get: lifetime warranty card, ravpower ace series 22000mah portable charger.2 x micro usb charging cables, carry pouch, user guide. Safer for longer: secure high-density li-polymer battery retains up to 70-80% of its full capacity even after 500 charge-discharge cycles. Triple-device charging: 3 ismart usbs automatically adjust the output up to 5.8a; note: power bank does not support qualcomm quick charge.

Rugged high capacity 10200mah power bank (2.1a power output) that is perfect for smartphones, tablets and portable electronic devices. Storage temperature: 32f to 113f, input: 5v / 2a; output: 5v / 2.1a; dimension: 3.98 x 2.54 x 1.06in, weight: 7.76oz. Ip67 certified: dust and water resistance for up to 3ft/1m for 30 minutes under water. Tough and sturdy: designed to be snow proof, dirt proof, drop proof and water proof. Built-in short-circuit, over-charge, and over-heat protection. Comes with led flashlight, compass, and a carabiner.

Slim, ergonomic design is super portable, easy to hold in your hand and put anywhere your want. High capacity 20000mah lithium-ion battery charges two devices simultaneously. Package includes: 1.20000mah portable charger.1, micro-usb cable. High capacity for ipad, mini, iphone 6.6+.5s.5c.5.4s, galaxy s5, s4, s3, note 3, nexus 4.5.7.10, htc one, one 2 (m8), motorola droid, lg g2, g3, moto x, g, e.

12 months warranty, satisfaction guaranted: backed by 1-year warranty and multiple protections, go4pwr external battery charger is compatible with all 5v digital devices, to power your digital life, let you enjoy mobile devices freely. If item fails to meet your expectation, we’re ready to provide you replacement or refund. Safe & premium li polymer battery: this portable battery charger s made of premium high density li-polymer battery, it s light weight, safer and more durable than lithium-ion battery, provides over 3.5 charges for your iphone x, or more than 2.5 charges for samsung s8. Smart cpu & 10 protections: the external battery backup pack s built-in a smart cpu with 10 protections, combines over-charged, over-discharged, over-voltage, over-current and short circuit protection etc, fully protect your devices safe.

Ultra compact design with digital display: light weight design, digital display always know the battery juice before you go, the light weight portable charger 13000mah is ideal for your travel. With 2 outputs: go4pwr mobile phone battery charger has dual outputs, you can charge two devices at the same time. 2.4a fast speed, it can charge your devices speedily.

Built-in safeguards protect your devices against excessive current, overheating, and overcharging. More convenient: one cable to charge your power bank and iphone. Includes apple mfi certified 3.9ft lightning iphone charging cable. High capacity: 5800 mah, at least 5000mah. Enough to provide two charges to an iphone 6s. Please be fully charged for the first time. Upgraded charging technology: auto detect your device and deliver its fully-intended charge speed up to 2.1a at most once connected. Ultra-compact: smallest and lightest design more convenient to carry, you can easily slip it in your bag or pocket.

Multi-safeguard: surge short circuit detection and prevention to guarantee you and your device’s safety. Anodized aluminum case enhances grip and prevents smudges and fingerprints. Impact vibration extreme temp tested. Excellent quality in & out: on the outside, fire-resistant anodized shell used by bumblebee, optimus prime, and others for their luxury cars. On the inside, the same battery and the same quality control as the iphone. Five days long 20000mah capacity portable battery packs for android / iphone: charge iphone 7 about 7 times, iphones 6s 8.5 times, galaxy s7 4.5 times, ipad mini 3 times. Charging time is 40% faster due to chargewise technology.

Highest efficiency for 2 device pocket juice: 2 usb ports for a added up current of 3.4a (2.4a max per port). The power bank can charge ipad and iphone 6s at once at their optimal charging speed with the chargewise technology. What you get: 1 x portable charger.1 x micro usb cable. This portable charger comes with a 2-year limited manufacturer’s warranty. To acheive maximum efficiency please use the included cable, your original cable or a third-party certified one (such as mfi).

Lightning and micro usb dual input – no matter whichever cable you are carrying, you can recharge the power bank with either the attached micro-usb cable or your own lightning cable. Smart led digital display – shows remaining power percentage in digital format and the display is accurate to 1%. (90% of all other power banks never have this feature. 20000mah large capacity – can fully charges an iphone 7 plus 4.5 times, a samsung galaxy s7 4.5 times, a 9.7-inch ipad pro 1.5 times and other smartphones multiple times. (it s not ligtweight due to 20000mah capacity, please kindly note. Sleek and solid – single-piece aviation aluminum metal casing, consistent the surface technology with macbook pro, processed by anodic oxidation and high-precision integrated cnc digital cutting technology, treated with high gloss lacquer finish, sleek and elegant.

What you get – 1x yoobao a2 20000mah power bank.1x micro usb cable (note: not included apple lightning and usb-c cable, apple devices and usb-c devices need to be charged by your own cable. ).1x user manual.18-month warranty.

Emergency led flashlight: built-in flashlight to light your life, perfect for a dark night in times of emergency, use aluminum shell instead of plastic which more safety and it is smoothly like a chocolate to hold in your hand. What’s included: jackery bar 6000mah portable charger, micro usb charging cable, user guide, thank you card. 24-month product guarantees friendly customer service. (note: the capacity of jackery bar 6000mah/22.2wh falls within federal aviation administration’s safety limit of 100wh, which means it can be with you in your carry-on luggage to the plane). Pocket-sized portable charger: the smallest portable external battery pack in all amazon 6000mah power banks with built-in flashlight. Portable travel charger: ultra compact bar 6000mah battery pack fits perfectly in your hand and pocket, it is the perfect companion for your travelling.

Fast phone charger: 6000mah mini portable battery pack with huge capacity can charge iphone 8 for 2.4 times or iphone 8 plus for 1.8 times or samsung galaxy s8 for 1.6 times or samsung galaxy s7 edge for 1.3 times.

Proven and tested for safety built with a 7 complex intelligent protection, you don’t have to worry about damaging your devices and your properties. Because it is built with an advanced omni-directional security protection for over heat over charge over current over power short circuit over voltage and over discharge, guaranteed charge cycle of over 1000 times (2 times longer than ordinary batteries). Compact and handy power bank phone charger this best seller small and compact smartphone recharger features a modern style matte finish anti-slip / anti-scratch ergonomic space aluminum alloy curved design – sleek, smartphone-like design featuring a 4-led power meter indicators – 4x rapid charge usb ports to charge 4 different devices at the same time. Works with iphone, ipad, samsung galaxy, android, smartphones, cell phones, tablets.

Designed for convenience and style – high capacity / high efficient conversion – recharge the power bank either using the included micro usb cable or via your own apple lightning cable – high quality li-polymer 16800mah battery charges the iphone 7 almost 4 times.7.5 times for iphone 5s.6 times for iphone 6.4.2 times for iphone 6+ plus.2 times for ipad pro, and more than 2 times for the samsung galaxy s6 and similar. 4x high speed usb ports – recharging in an instant with 4x fast-charging 5v/2.1a usb ports, you can charge multiple android and apple phone and tablet devices in a matter of hours. You can power up four different devices altogether, convenient, fast and safe lightning & android dual input design, recharge using your own cable. No need to carry many cables while you travel.