Warranty
The warranty for all PowerKeep™ products is 1 year. Read the complete Limited Warranty text here.

How do I return a product?
To return a product, please contact the retailer/distributor you purchased from and follow their return policy. For warranty service, contact our Support Team at 1-888-404-9010 or email support@energizersolar.com and they will lead you through the process.

Can I use the solar panel indoors to charge my PowerKeep power bank? What about on my car’s dashboard or through a window?
Bright sunlight is the best way to charge your PowerKeep power bank using the solar panel. Charging from the solar panel indoors or in a car depends on a number of factors, including the type of glass in the window and window tint. When you are indoors, we recommend using the wall or a USB port to charge your power bank.

What type of batteries are included in Energizer® PowerKeepportable solar products?
The PowerKeep 12 product includes four (4) Energizer® rechargeable AA NiMH 2300 batteries.

The PowerKeep 36, PowerKeep Wanderer and PowerKeep PRO include the PK10K, a powerful 10,000 mAh lithium power bank.

What can I charge with Energizer® solar products?
Energizer® PowerKeep portable solar products are perfect for charging USB devices and today’s digital assistants — smartphones and tablets of all sizes and models. Each PowerKeep product is different (see specifications for specific products), but every product battery will charge the average smartphone several times and the average tablet between one and two times, depending on size.

Best of all, you can stay charged while on the go – just find direct sunlight and power up!

How long does charging take?
Each Energizer® PowerKeep solar product has slightly different specifications — you can see each one on their individual product pages. See our charging table. Charging time will vary by device, how depleted the battery is and other factors.

Time it will take to charge the PKcharge/PK10K from the solar panel

Product USB 1.0/2.0 (5v/0.5A) USB 3.0 (5v/0.9A) Dedicated USB charging port (5v/1.5A) AC adapter (5v/1A) 4-fold solar panel3 Backpack solar panel4
PKcharge AA battery recharger1 6-8 hrs 3.3-4.5 hrs 3-4 hrs 3-4 hrs 3-6 hrs not applicable
PK10K 10000mAh power bank2 26 hrs 14.4 hrs 8.7 hrs 13 hrs 10-20 hrs 20-30 hrs

Time it will take to charge a smartphone/tablet and number of charges available

Time it will take to charge # of charges from a fully-charged PKcharge/PK10K
Product Smartphone (avg) Tablet (avg) Smartphone Tablet
PKcharge AA battery recharger1 3.4 hrs 5.8 hrs 1-2 charges <1 charge
PK10K 10000mAh power bank2 2.3 hrs 3.9 hrs 3-6 charges 1-2 charges

1PKcharge is included with the PowerKeep 12.
2PK10K 10000mAh power bank is included with the PowerKeep 36, PowerKeep PRO and PowerKeep Wanderer.
34-fold solar panel is included with the PowerKeep 12 and PowerKeep 36.
4Backpack solar panel is included with the PowerKeep PRO and PowerKeep Wanderer backpacks; depends on angle and intensity of the sun.

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Can I run my device from the panels while it charges?
Yes! Plugging your device into a PowerKeep product is much like plugging into an outlet. If your solar panels are in direct sunlight, they will charge the battery and your device while you use it — so let the music play, the conversation continue and never miss a text!

How long will it take to charge the power bank or batteries from the solar panel?
That depends on the intensity of the light source and the power bank or batteries you’re using. Specifications for each device are available on the corresponding product page so you can select the Energizer® PowerKeep portable solar product that’s perfect for you!

How can I charge my PK10K power bank or my PKcharge charging unit?
Both the PK10K and PKcharge can be charged three ways: by a standard USB port, a wall outlet or by our PowerKeep portable solar panels. All necessary cables are included within the product packaging of the specific PowerKeep product you purchase.

To charge the PK10K or PKcharge from the wall, you will use the same wall transformer you currently use to charge your device. We don’t include a wall transformer because most devices already come with them.

Can I charge my power bank at the same time I charge my phone or USB device?
Yes! You can connect the solar panel to the input port of the power bank while your phone or USB device is connected to the output port on the power bank.

Can I charge my phone or USB device directly from the solar panel?
Yes! Just remember that when the sun goes down or is obstructed, the output current from the solar panel may drop below what is required to charge your phone. You may see a charging error on your phone. No worries, either move into the sun and unplug and then plug the cable back into the device or reach for your PowerKeep power bank and connect your phone into the output port on the power bank.

Can I charge the products with a light source other than the sun?
Probably not. Most light sources, other than sunlight, are not intense enough to create the solar power necessary to charge the power bank or your device.

Aren’t solar panels made from glass which makes them fragile and heavy?
Most solar panels are made of glass, but not ours! All Energizer® PowerKeep portable solar products use the flexible, lightweight copper indium gallium (di)selenide (CIGS) solar panels — created by Ascent Solar — to allow for seamless integration of solar power into a complete line of applications without the restrictions of conventional glass solar panels. Traditional glass panels are breakable and integrating them into fabric or non-flat consumer products remains challenging. The CIGS solar panels are far more flexible and durable, as well as lighter in weight, making the PowerKeep™ line of portable solar products durable, portable and efficient.

What does this mean for you? Products that are lighter, less fragile and more efficient in order to ensure your mobile devices start charged and stay charged.

How do I charge the PKcharge charging unit?
The PKcharge can be charged three ways: by a standard USB port, a wall outlet or by our PowerKeep™ portable solar panels. All necessary cables are included within the product packaging of the specific PowerKeep product you purchase.

To charge your PKcharge from the wall, you will use the same wall transformer that came with your device (i.e. cell phone). We don’t include a wall transformer because most devices already come with them.

What batteries can be used with my PowerKeep 12?
Four Energizer® AA NiMH rechargeable batteries are included with the PowerKeep 12. We recommend Energizer® NiMH rechargeable batteries. The PKcharge can also charge AAA* NiMH rechargeable batteries, using the AAA battery adapter. Two or four same-sized batteries MUST be charged at once, but not all batteries need to be empty. When charging two batteries, see the diagram on the back of the PKcharge to see how to position the batteries.

*AAA NiMH rechargeable batteries are sold separately and can be used with the included AAA battery adapter (see user guide).

How do I know if my PKcharge is charging?
When charging, the four (4) LED lights on the PKcharge will flash.

How can I tell if my PKcharge is charged?
Turn on the PKcharge and the four (4) LED lights will light up if charged.

How do I charge my phone or device?
Now that’s simple! Just plug your phone or device into an output port on the PKcharge (see diagram).

You can also plug your phone or device directly into the PowerKeep solar panel and place the solar panel directly in sunlight.

Can I charge just two batteries at a time?
Yes. When charging or discharging two batteries, do so in pairs as shown in the diagram below.

How long will it take to charge the Energizer® AA batteries in the PKcharge?
That depends on the method you use to charge the PKcharge — solar panels, wall outlet or USB port. Please see our charging table.

Time it will take to charge the PKcharge/PK10K from the solar panel

Product USB 1.0/2.0 (5v/0.5A) USB 3.0 (5v/0.9A) Dedicated USB charging port (5v/1.5A) AC adapter (5v/1A) 4-fold solar panel3 Backpack solar panel4
PKcharge AA battery recharger1 6-8 hrs 3.3-4.5 hrs 3-4 hrs 3-4 hrs 3-6 hrs not applicable
PK10K 10000mAh power bank2 26 hrs 14.4 hrs 8.7 hrs 13 hrs 10-20 hrs 20-30 hrs

Time it will take to charge a smartphone/tablet and number of charges available

Time it will take to charge # of charges from a fully-charged PKcharge/PK10K
Product Smartphone (avg) Tablet (avg) Smartphone Tablet
PKcharge AA battery recharger1 3.4 hrs 5.8 hrs 1-2 charges <1 charge
PK10K 10000mAh power bank2 2.3 hrs 3.9 hrs 3-6 charges 1-2 charges

1PKcharge is included with the PowerKeep 12.
2PK10K 10000mAh power bank is included with the PowerKeep 36, PowerKeep PRO and PowerKeep Wanderer.
34-fold solar panel is included with the PowerKeep 12 and PowerKeep 36.
4Backpack solar panel is included with the PowerKeep PRO and PowerKeep Wanderer backpacks; depends on angle and intensity of the sun.

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How long will it take to charge my phone or device with the PKcharge?
Charging time for your devices will vary by device, how depleted the battery is and other factors. See our device charging time table for typical times.

Time it will take to charge the PKcharge/PK10K from the solar panel

Product USB 1.0/2.0 (5v/0.5A) USB 3.0 (5v/0.9A) Dedicated USB charging port (5v/1.5A) AC adapter (5v/1A) 4-fold solar panel3 Backpack solar panel4
PKcharge AA battery recharger1 6-8 hrs 3.3-4.5 hrs 3-4 hrs 3-4 hrs 3-6 hrs not applicable
PK10K 10000mAh power bank2 26 hrs 14.4 hrs 8.7 hrs 13 hrs 10-20 hrs 20-30 hrs

Time it will take to charge a smartphone/tablet and number of charges available

Time it will take to charge # of charges from a fully-charged PKcharge/PK10K
Product Smartphone (avg) Tablet (avg) Smartphone Tablet
PKcharge AA battery recharger1 3.4 hrs 5.8 hrs 1-2 charges <1 charge
PK10K 10000mAh power bank2 2.3 hrs 3.9 hrs 3-6 charges 1-2 charges

1PKcharge is included with the PowerKeep 12.
2PK10K 10000mAh power bank is included with the PowerKeep 36, PowerKeep PRO and PowerKeep Wanderer.
34-fold solar panel is included with the PowerKeep 12 and PowerKeep 36.
4Backpack solar panel is included with the PowerKeep PRO and PowerKeep Wanderer backpacks; depends on angle and intensity of the sun.

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How do I charge the PK10K power bank?
The PK10K can be charged three ways: by a standard USB port, a wall outlet or by our PowerKeep™ portable solar panels. All necessary cables are included within the product packaging of the specific PowerKeep product you purchase.

To charge your PK10K from the wall, you will use the same wall transformer that came with your device (i.e. smartphone). We don’t include a wall transformer because most devices already come with them.

How do I know if the PK10K is charging?
The PK10K power bank has four (4) blue LED lights next to the input port. A blinking light means the PK10K is charging. When all four (4) LED lights are solid blue, your PK10K is fully charged.

How can I tell if my PK10K power bank is charged?
The blue LED lights next to the input port indicate the level of charge. While holding the PK10K in one hand, gently tap the PK10K on the palm of your other hand. The LED lights will light up.

1 LED = 25 percent charged
2 LEDs = 50 percent charged
3 LEDs = 75 percent charged
4 LEDs = fully charged

How do I charge my phone or device?
Now that’s simple! Just plug your phone or device into an output port on the PK10K. 
You can also plug your phone or device directly into the PowerKeep solar panel and place the solar panel either in direct sunlight or near a window receiving bright sunlight.

How long will it take to charge the PK10K?
Charge time for the PK10K depends on the method used. Please see our charging time table.

Time it will take to charge the PKcharge/PK10K from the solar panel

Product USB 1.0/2.0 (5v/0.5A) USB 3.0 (5v/0.9A) Dedicated USB charging port (5v/1.5A) AC adapter (5v/1A) 4-fold solar panel3 Backpack solar panel4
PKcharge AA battery recharger1 6-8 hrs 3.3-4.5 hrs 3-4 hrs 3-4 hrs 3-6 hrs not applicable
PK10K 10000mAh power bank2 26 hrs 14.4 hrs 8.7 hrs 13 hrs 10-20 hrs 20-30 hrs

Time it will take to charge a smartphone/tablet and number of charges available

Time it will take to charge # of charges from a fully-charged PKcharge/PK10K
Product Smartphone (avg) Tablet (avg) Smartphone Tablet
PKcharge AA battery recharger1 3.4 hrs 5.8 hrs 1-2 charges <1 charge
PK10K 10000mAh power bank2 2.3 hrs 3.9 hrs 3-6 charges 1-2 charges

1PKcharge is included with the PowerKeep 12.
2PK10K 10000mAh power bank is included with the PowerKeep 36, PowerKeep PRO and PowerKeep Wanderer.
34-fold solar panel is included with the PowerKeep 12 and PowerKeep 36.
4Backpack solar panel is included with the PowerKeep PRO and PowerKeep Wanderer backpacks; depends on angle and intensity of the sun.

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How long will it take to charge my phone or device?
Charging time for your devices will vary by device, how depleted the battery is and other factors. Please see our device charging time table for typical times.

Time it will take to charge the PKcharge/PK10K from the solar panel

Product USB 1.0/2.0 (5v/0.5A) USB 3.0 (5v/0.9A) Dedicated USB charging port (5v/1.5A) AC adapter (5v/1A) 4-fold solar panel3 Backpack solar panel4
PKcharge AA battery recharger1 6-8 hrs 3.3-4.5 hrs 3-4 hrs 3-4 hrs 3-6 hrs not applicable
PK10K 10000mAh power bank2 26 hrs 14.4 hrs 8.7 hrs 13 hrs 10-20 hrs 20-30 hrs

Time it will take to charge a smartphone/tablet and number of charges available

Time it will take to charge # of charges from a fully-charged PKcharge/PK10K
Product Smartphone (avg) Tablet (avg) Smartphone Tablet
PKcharge AA battery recharger1 3.4 hrs 5.8 hrs 1-2 charges <1 charge
PK10K 10000mAh power bank2 2.3 hrs 3.9 hrs 3-6 charges 1-2 charges

1PKcharge is included with the PowerKeep 12.
2PK10K 10000mAh power bank is included with the PowerKeep 36, PowerKeep PRO and PowerKeep Wanderer.
34-fold solar panel is included with the PowerKeep 12 and PowerKeep 36.
4Backpack solar panel is included with the PowerKeep PRO and PowerKeep Wanderer backpacks; depends on angle and intensity of the sun.

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PowerKeep™ products are practically maintenance free. For best results, we recommend keeping the solar panel free from dust and dirt by wiping it clean with a damp cloth.

Our products are not waterproof, so take care when using the product in the elements especially near fire or water. Our products should not be immersed in water.

We recommend shielding the PKcharge and the PK10K batteries from direct sunlight; you could tuck the battery behind the solar panel when in direct sunlight.