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2. Battery pack - Wikipedia

   en.wikipedia.org/wiki/Battery_pack

   A portable power bank charging a mobile phone. A power bank is a portable device consisting of a battery, a charger to interface battery with charging power source and an output interface to provide desired output voltage. [10] Power banks are made in various sizes and typically based on lithium-ion batteries. A power bank contains battery ...

3. Battery charger - Wikipedia

   en.wikipedia.org/wiki/Battery_charger

   Rapid charging results in even faster recharge times and is limited only by available AC power, battery type, and the type of charging system. [20] Onboard EV chargers (change AC power to DC power to recharge the EV's pack) can be: Isolated: they make no physical connection between the A/C electrical mains and the batteries being charged. These ...

4. Backup battery - Wikipedia

   en.wikipedia.org/wiki/Backup_battery

   Additionally these batteries power the remote cellular phone systems that thwart phone line snipping as well. The backup battery usually has a lifespan of 3-10 years depending on the make and model, and so if the battery runs flat, there is only one main source of power to the whole system which is the mains power.

5. Walmart MoneyCenter: What it is and how to use it - AOL

   www.aol.com/finance/walmart-moneycenter...

   Walmart MoneyCenter offers many of the same services as a bank, including a checking account, money transfers and check cashing. It can be a convenient way to perform basic banking transactions ...

6. Lithium polymer battery - Wikipedia

   en.wikipedia.org/wiki/Lithium_polymer_battery

   Three-cell LiPo battery for RC models. LiPo batteries are now almost ubiquitous when used to power commercial and hobby drones (unmanned aerial vehicles), radio-controlled aircraft, radio-controlled cars, and large-scale model trains, where the advantages of lower weight and increased capacity and power delivery justify the price. Test reports ...

7. Inductive charging - Wikipedia

   en.wikipedia.org/wiki/Inductive_charging

   Finally, the direct current charges a battery or provides operating power. [ 1 ] [ 2 ] Greater distances between sender and receiver coils can be achieved when the inductive charging system uses resonant inductive coupling , where a capacitor is added to each induction coil to create two LC circuits with a specific resonance frequency.