6.5 Battery Management
Battery limits drive scan duration planning, segment splitting, and total project time. Knowing exactly how much runtime you can expect under field conditions is what separates a smooth multi-day project from one that runs out of power on the last day with rooms still uncaptured.
Battery Specifications
The L3 uses a 14.4 V, 3,350 mAh quick-swap battery charged in the supplied charging hub. The L2 Pro uses a 14.4 V, 46.8 Wh clip-on battery, and the K2 a 1,900 mAh clip-on battery. Both clip onto the device body.
Real-World Runtime vs. Specification
The 90-minute figure is a manufacturer specification under standard temperature and continuous scanning conditions.
Battery Swap Procedures
Neither the L2 Pro nor the K2 keeps recording across a battery change. Removing the battery cuts power, and neither device resumes a scan from a breakpoint, so a battery change ends one segment and starts the next. Plan it at a seam and follow the sequence below.
Plan the Swap Before Battery Level Drops Below 20%
Do not wait for the device to warn you. Plan to end the current segment when the battery reaches approximately 20%. This gives you a comfortable buffer to complete the segment cleanly, save the project file, and swap the battery without scrambling.
End scanning before battery level drops below 20%. End the segment immediately once the app warns that the battery is low. The risk is not just losing a few minutes of scan data. If the device shuts down mid-save, the project file is corrupt and unrecoverable.
Standard Battery Swap Sequence
Tap Stop in LixelGO and wait for the green LED to become solid
The fast-flashing green LED indicates the device is writing the project file. This takes 30 to 60 seconds depending on segment length. The LED becomes solid green when the save is complete. Do not handle the device, remove the battery, or power off until the LED is solid green.
Power off the device before removing the battery
Press and hold the power button until the device powers off completely. Removing the battery while the device is powered on can cause data corruption to recently saved files even though the active project save is complete.
Release the battery clip and remove the depleted battery
The battery clip is on the side of the battery facing toward the device body. Press the release tab and slide the battery off. The battery is keyed; it can only be installed and removed in the correct orientation.
Slide the fresh battery on until it clicks
Align the fresh battery with the device contacts and slide it on. The battery should click into place when fully seated. Do not force the battery; if it does not slide on smoothly, check the contact alignment and try again.
Power on and re-establish connection in LixelGO
Press the power button to power on the device. Wait for it to complete its startup sequence. Reconnect to LixelGO. If RTK is in use, wait for the satellite status to return to Fixed (typically under 60 seconds with clear sky) before starting the next scan segment.
Start the next segment where the previous one ended
Start the next segment where the previous one ended, with the device still at the seam and on its control point base if a control point marks it. Then walk back through at least 50 ft (15 m) of the previous segment's coverage before continuing into new territory. This is what allows Map Fusion to align the segments.
Charging
- Full charge time: about 2 hours from empty to full on the L2 Pro, and about 2 hours on the K2, using the supplied charger.
- Charge indicator: the indicator light shows the current battery level while charging. On the L2 Pro, a flashing handle battery light means it is charging normally; single-click the button on the battery to show the level.
- Multiple chargers: charging multiple batteries simultaneously using separate chargers does not affect charge time per battery.
- Heat during charging: batteries become warm during fast charging. If a battery becomes hot to the touch, stop charging and allow it to cool before resuming.
- Charge before each project day: top off all batteries the night before each project day. Do not start a project day with batteries at less than 95% charge.
Battery Capacity Planning
For most professional work, plan a minimum of 4 batteries per device. This provides 6 hours of total scanning time at standard runtime, which covers a typical full project day with margin. For larger projects or cold-weather work, increase to 6 batteries.
Battery Lifespan and Storage
L2 Pro and K2 batteries are rated for 300 to 500 charge cycles, after which capacity falls to 70 to 80 percent of its initial value. Replace batteries when their actual scanning runtime drops to a level that disrupts project planning.
Storage Best Practices
- Storage charge level: charge the battery to full promptly after each day of use. A battery left very low or completely depleted must be recharged promptly; XGRIDS does not cover battery damage caused by ignoring that under warranty.
- Storage temperature: 15°C to 25°C is ideal. Avoid storing batteries in vehicles in summer or in unheated spaces in winter.
- Storage location: dry, ventilated, away from direct sunlight. Original packaging or padded battery cases reduce the risk of mechanical damage and contact shorting.
- Long-term storage: recharge a fully charged but unused battery at least once every 3 months, to prevent deep discharge that damages cells permanently.
- Do not store damaged batteries: a battery that has been dropped, swollen, or visibly damaged should be removed from service immediately. Disposed of via your local battery recycling service, never in regular trash.
Do not store batteries fully discharged. Lithium-ion cells stored at very low charge for extended periods can enter a deep-discharge state where they cannot be safely recharged. The battery may appear to charge but will lose capacity rapidly or fail outright. Charging to full after each day of use, and recharging an unused battery at least once every 3 months, prevents this failure mode.
Critical Battery Warnings
- Do not power off during save. The fast-flashing green LED means the project file is being written. Powering off, removing the battery, or any other interruption during this window corrupts the project file. The data is not recoverable.
- Do not let the device shut down from battery depletion mid-scan. An automatic shutdown does not save the project file gracefully. End the current segment with at least 20% battery remaining and swap.
- Do not mix old and new batteries on the same project day without testing. A degraded battery may show a higher charge level than its actual runtime can deliver. Run aging batteries on simpler projects until you confirm their actual runtime, then plan around the reduced capacity.
- Do not charge a battery that is visibly damaged. Any battery with a swollen case, visible leakage, deformed contacts, or that has been dropped from significant height should be retired and recycled, not charged.
- Do not leave batteries in direct sun, in vehicle interiors above 35°C, or near heat sources. Heat damage is cumulative and irreversible. A battery that has been heat-stressed will not show external damage but will lose capacity faster than expected.
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