What Battery Type Powers Exposure Lights and Support Cells?

By Larry on March 13, 2025

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Understanding Batteries in Exposure Lights and Support Cells

Exposure Lights are popular for cycling, known for their brightness and reliability. Many users wonder about the specific battery type used in these lights and their support cells. Let’s dive into what you need to know.

What are Exposure Lights Support Cells?

Support Cells are external battery packs designed to extend the runtime of your Exposure Lights. They connect to your light, providing additional power for longer rides or events. Think of them as power banks for your bike light!

These support cells don’t charge the lights from a low power state. Instead, they work alongside the internal battery. This means they discharge together during use, effectively increasing the overall battery capacity.

Battery Type Used

While the exact chemistry isn’t explicitly stated in the provided snippets, it’s highly likely that Exposure Lights and their Support Cells utilize Lithium-Ion (Li-Ion) batteries. Li-Ion batteries are commonly used in portable electronics due to their high energy density, relatively light weight, and ability to be recharged. Modern Bike also mentions Victron VE.Bus BMS for Victron LiFePO4 Batteries, suggesting that Lithium Iron Phosphate (LiFePO4) batteries may also be used in some configurations.

Support Cell Capacities

Exposure Lights offer Support Cells in various capacities. Two common sizes are:

  • 3.4A Support Cell: This provides a moderate boost to runtime and is compatible with various Exposure Lights like Verso, HT1000, Sirius, Joystick, Axis, Diablo, and Zenith.
  • 8.7A Support Cell: This offers a significant increase in runtime. It’s suitable for endurance events or riders who want extended use. Compatible models include Six Pack, MaXx D, Toro, Race, Strada, Equinox, Diablo, Axis, Joystick, and Sirius.

Compatibility is Key

Always check the compatibility of a Support Cell with your specific Exposure Light model. Ensure that the connector and voltage are compatible to avoid damage or malfunction. Refer to the manufacturer’s specifications or your light’s manual for guidance.

Charging Your Support Cell

Support Cells come with a connector that allows charging from your Exposure Lights Smart Charger. A charger is not typically supplied with the support cell, assuming you already have one with your light. It is recommended that you use the Smart Charger that came supplied with your light.

Important Considerations

  • Shipping Restrictions: Some retailers only ship Support Cells within specific regions due to regulations on lithium batteries.
  • Discontinued Models: Be aware that some Support Cell models, like the 3.4A version, may be discontinued. Check for availability before purchasing.
  • Mounting: Support Cells usually include mounting parts to attach them securely to your bike frame.

Taking Care of Your Battery

To maximize the lifespan of your Exposure Light and Support Cell batteries, follow these tips:

  • Avoid extreme temperatures.
  • Store batteries in a cool, dry place when not in use.
  • Don’t overcharge or completely discharge batteries.
  • Use the recommended charger.

Troubleshooting Battery Issues

If you encounter issues with your Exposure Light or Support Cell battery, consider these troubleshooting steps:

  • Check the connections between the light and the Support Cell.
  • Ensure the battery is fully charged.
  • Try a different charging cable or adapter.
  • Contact Exposure Lights support or a qualified technician if problems persist.

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