Charging Camera Batteries: Field Strategies For Photographers

Charging camera batteries in the field can be a challenge, especially for outdoor photographers, adventurers and travellers who want to be self-sufficient. Modern digital cameras can quickly drain batteries, so it's important to have a reliable power source when you're away from an outlet. One option is to carry enough spare batteries to last the duration of your trip. However, this may not be feasible for extended trips or for cameras with high power consumption. Another option is to use an external battery pack or a power bank, which can be charged through USB, 12V or similar low-voltage adapters. Solar panels are also a popular choice for charging camera batteries in the field, but they rely on sunlight and may not be suitable for all conditions. Additionally, some cameras and batteries require specific chargers, so it's important to plan accordingly.

Charging camera batteries via car 12V DC power

If you're on a trip where you're driving a lot, you can charge your camera batteries using your car's 12V DC power from the cigarette lighter. The manufacturer-supplied camera battery charger usually operates on 110V AC, so you would need a power inverter to obtain 110V power from your car's 12V. However, these devices can heat up and are not the safest option.

A safer alternative is to buy a third-party camera battery charger that operates on a lower voltage, either 12V or 5V (USB). You can plug this directly into your car's 12V outlet, or if you need to charge your camera batteries quickly, you can plug them into an external battery. This allows your camera batteries to recharge even when you're stopped, and you can recharge other external batteries that aren't in use via your car's 12V outlet.

If your car doesn't have a 12V power outlet, you can use a cigarette lighter converter. However, this method can harm your car battery if done incorrectly, so it should only be used in an emergency.

To charge your camera using this method, locate a 12V power outlet in your vehicle and attach a USB cord to your camera, with one end connected to the outlet. Then, switch on your camera and let the battery charge. Once it's finished, you can unhook everything and use your camera.

Another option is to use a DC source and a resistor. First, attach the DC power source's positive terminal to the positive terminal of the camera battery. Then, attach the resistor's other end to the DC power source's negative terminal. You can now unplug everything and use your camera while you wait for the battery to fully charge. However, if this is not done correctly, it could destroy your camera, so this method is also for emergencies only.

Charging camera batteries via solar panel

Charging your camera batteries via solar panel is a great way to ensure you're self-sufficient when it comes to powering your devices. Here are some detailed instructions on how to do it:

Choosing the Right Solar Panel

First, you'll need to select an appropriate solar panel. The Goal Zero Nomad 7 Solar Panel is a popular choice as it's compact, fits easily into a backpack, and provides reasonable charge times for most small devices. It comes with a dedicated USB port and a 12V port with an adapter cable. However, any solar panel with a USB port should work.

Getting the Right Camera Battery Charger

Next, you'll need a USB charger for your camera battery. This can be a bit tricky as you'll need to find one that's compatible with your specific camera model. OAproda, for example, makes USB chargers for a wide range of mirrorless, DSLR, and point-and-shoot cameras.

Testing Your Setup

Before you head out on your trip, it's crucial to test your setup to ensure it works correctly. Camera batteries can be slightly more complex to charge than cell phones, so don't skip this step. Contact the solar panel manufacturer if you have any questions or concerns.

Charging Times

Keep in mind that charging times will vary depending on the sky conditions and the amount of sunlight available. In full sun, it typically takes around four hours to fully charge an empty camera battery.

Power Packs

If you want the flexibility to charge your devices even when there's no sun, consider investing in a power pack like the Goal Zero Venture 30. This is a rugged, outdoor-designed power pack that can be charged from the solar panel and then used to charge your devices later. It has two USB ports and a Micro USB port, allowing you to charge multiple devices simultaneously.

Solar-Powered Batteries

Alternatively, you can opt for cheaper third-party batteries that have a built-in solar panel. These batteries will take longer to charge, but they're small, light, and compact. As long as the unit has a USB port, it should work for charging your camera.

Voltage Considerations

When choosing a solar panel and battery setup, consider the voltage requirements of your camera. Some cameras use 5V, while others may use higher voltages like 6V or 12V. Ensure that your solar panel, charger, and battery are compatible with the voltage requirements of your camera to avoid damaging your equipment.

By following these instructions, you'll be able to keep your camera batteries charged via solar power during your outdoor adventures.

Using an external battery to charge camera batteries

Using an external battery to charge your camera batteries in the field is a convenient option. Here are some tips and instructions for doing so:

Choosing the Right External Battery

When selecting an external battery, consider its compatibility with your camera. Some cameras can be charged via a USB connection, so a portable power bank with a USB output will suffice. However, some camera batteries require a higher voltage, so ensure the external battery can provide sufficient power. Additionally, some older camera models may not support USB charging, so always check your camera's manual or specifications.

Charging via a Power Bank

If your camera supports USB charging, you can use a power bank to recharge your camera batteries. Simply connect the power bank to your camera using a USB cable. This method is convenient and affordable, as it eliminates the need for a separate charger. However, keep in mind that USB charging can be slower than using a specialised charger, and it may not be suitable if you need to charge your battery quickly.

Using a V-Mount Battery

Another option is to use a V-mount battery, which is a common mobile power source for photography and videography. These batteries typically feature multiple ports, including USB-A and USB-C, allowing you to connect to different devices and camera brands. V-mount batteries are known for their high power, high capacity, compact size, and ease of use. They are a reliable choice for charging camera batteries in the field.

Steps for Charging with an External Battery

• Place the battery into the external charger, ensuring proper contact between the battery terminals and the charger. Some chargers can charge multiple batteries simultaneously, depending on your camera battery type.
• Connect the USB cable: Attach the USB cable to the charger and then to the power bank. Ensure the USB connector is inserted correctly, as some cables have a specific direction.
• Turn on the external power supply: Press the power button on your external battery, or it may turn on automatically when you plug in the cable. Check the indicators to see if charging has started. Typically, the LEDs will change when charging is complete or if the battery is empty.

Advantages and Disadvantages of USB Charging

USB charging offers several benefits, including affordability and convenience. It eliminates the need for a separate charger and allows for mobile charging. Additionally, it is a universal technology, as most devices with a USB port can be charged this way. However, there are also drawbacks. USB charging may be slower than using a specialised charger, and it may not be suitable for larger batteries that require more power. Always check your camera's manual to ensure it supports USB charging.

Using a hand crank generator to charge camera batteries

Hand crank generators are a great way to charge camera batteries in the field, especially if you're travelling to areas without access to electricity. They are compact, versatile, affordable, low-maintenance, and reliable.

Choosing a Hand Crank Generator

When choosing a hand crank generator, opt for one that provides enough power to charge your camera batteries. Some hand crank generators offer a range of output voltages, allowing you to select the appropriate voltage for your device. Look for generators that provide at least 5V of power, as this is the standard for USB-powered devices, including many modern cameras.

Additionally, consider the weight and portability of the generator. If you plan to carry it in your backpack, look for lightweight options that won't add too much bulk. Some hand crank generators come with straps or velcro attachments, making it easier to secure the device and free up your hands during use.

Using the Hand Crank Generator to Charge Camera Batteries

To charge your camera batteries using the hand crank generator, follow these steps:

• Ensure that the hand crank generator is fully charged before heading out into the field.
• Connect the camera battery to the hand crank generator using the appropriate cable. Most hand crank generators will have a USB port that you can use to connect to your camera battery or device.
• Start cranking the handle at a constant pace. The generator will convert the mechanical energy from your cranking into electrical energy, charging the internal battery of the generator and subsequently charging your camera battery.
• Continue cranking until your camera battery is fully charged. The charging time will depend on the capacity of your camera battery and the speed at which you crank the handle.
• Once your camera battery is fully charged, disconnect it from the hand crank generator, and you're ready to start shooting!

Tips for Efficient Charging

• Opt for a generator with a smart chip that optimises energy conversion and protects against accidental overloads.
• If your camera uses proprietary batteries, consider investing in a third-party USB camera battery charger that is compatible with your camera brand. These are often more versatile and efficient than manufacturer-supplied chargers.
• Choose a generator with additional features like solar panels or USB charging ports, which can be useful for charging other devices.
• Carry extra camera batteries to ensure you have backup power in case your charged battery runs out.

By following these guidelines, you can effectively use a hand crank generator to charge your camera batteries in the field, ensuring you never miss a photo opportunity due to a lack of power!

Using a universal charger to charge camera batteries

Universal chargers are a great option for charging camera batteries in the field. They are compatible with a wide range of devices, including DSLR cameras, digital cameras, camcorders, and rechargeable batteries. Some universal chargers, like the one offered by Bower, are even compatible with action cameras and NiMH AA/AAA batteries. This versatility means you won't need separate chargers for different devices, reducing the amount of gear you need to carry.

One advantage of using a universal charger is that they often feature LED indicators that show the charging status of your batteries. This feature keeps you informed about the progress of your charging and helps you manage your power usage effectively. Additionally, some universal chargers have built-in safety mechanisms, such as over-voltage and over-charge protection, ensuring that your devices charge safely without the risk of damage.

When choosing a universal charger, look for one with adjustable voltage settings. This feature allows you to charge different types of batteries, including 3.7v and 7.4v lithium-ion batteries, ensuring that you can use it with a variety of camera models. Universal chargers with USB output are also highly beneficial as they enable you to charge devices with a USB connection, such as smartphones or tablets, in addition to your camera batteries.

Universal chargers are readily available from various retailers, including Amazon and Walmart. When purchasing one, be sure to check the compatibility with your specific camera model and battery type. It is also beneficial to read reviews from other customers to ensure the charger meets your needs and performs as expected.

Frequently asked questions