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The lithium ion battery will give you the freedom to move your SwimNerd digital pace around without worrying about the need for an electrical outlet.

Pace Clock Lithium Ion Battery

SKU: 217537123517253
  • A rechargeable lithium ion battery with 6-hour battery life.  12v Lithium Polymer Battery Pack with Li-ion charger.

    Voltage... 12v
    Capacity... 4800mAh
    Input/Output... DC 12.6V/DC 12.6-10.8V
    Operating Environment...  Charging 0-45 degrees celcius, Discharging -20-60 degrees celcius
    Storage Environment... store for >3 months.  If not in use please recycle it.  Storage temperature: <35 degrees celcius
    Cycle Life... less than or equal to 500

    Batteries have been tested by SwimNerd to last over 6 hours in some cases.

    CE certified.


    • lithium batteries may explode if not used properly. We are not responsible for any damages or loses caused by misusing (included but not limited to: mis-charging, mis-discharging, any changes or modifications to the battery pack, or mis-assemling the battery packs)
    • always charge battery with attention. Battery packs shall be placed on a fire-proof surface to avoid any accident
    • you must read the safety instructions and warnings before using or charging your batteries


    • Lithium Polymer batteries are volative. Polymer battery packs may explode and cause fire if misused or defective. Failure to read and follow the below instructions may result in fire, personal injury and damage to property if charged or used improperly
    • by purchasing this battery the buyer assumes all risks associated with lithium batteries. If ou do not agree with these conditions, please consider using the power adapter
    • we require all battery buyers must be professionals and have the capability to handle emergency
    • when charging, don't leave battery pack and charger on a flammable surface like carpet. Do not over charge your battery. The charger has an LED indicator to let you know when the battery is fully charged. Do not leave batteries charging over-night
    • keep away from children
    • all lithium batteries have a cycle life (500 full charges), please replace old batteries with new ones when it reaches it's service life or when it is two years old, whichever comes first
    • do not throw lithium ion batteries away. Find a local recycling center that accepts lithium ion batteries
    • use Lithium Polymer/Li-ion charger only. Failure to do so may cause a fire, which may result in personal injury and property damage
    • never charge batteries unattended. When charging batteries you should always reamin in constant observation to monitor the charging process and react to potential problems that may occur
    • if at any time you witness a battery starting to balloon, swell up, smoke or radiate heat, discontinue the charging process immediately, disconnect the battery, and recycle the battery
    • never store or charge battery pack inside your car in extreme temperatures, since extreme temperate could ignite fire
    • never drop the batteries
    • new charge batteries unattended
    • put battery in the fireproof container and charge in an isolated area, away from other flammable materials. Always have a fire extinguisher for emergency use
    • let battery cool down to ambient temperature before charging
    • do not charge battery packs in a series on a power strip. Charge each battery pack individually. Failure to do so may result in incorrect battery recognition and charging functions. Overcharging may occure and fire may be the result
    • store battery at room temperature between 4-26 degrees celcius
    • do not expose battery pack to direct sunlight (heat) for extended periods of time
    • when transporting or temporarily storing in a vehicle, temperature range should be greater than -6 degrees celcius but no more than 65 degrees celcius
    • storing battery at temperatures greater than 76 degrees celcius for extended periods of time (more than 2 hours) may cause damage to the battery and possible fire
    • use caution to avoid puncture of the cell. Puncture of cells may cause a fire
    • charge the battery every 2 months to keep it fresh if you don't use it
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