The Biolapse LT includes a 7.4ah Lithium Ion Battery. This normally provides up to a week of shooting in moderate environmental conditions. However it might not be the right battery for certain situations Cold Weather can drain the capacity of a Li-Ion battery, and the battery can be permanently damaged if charging while under 32°f or 0°c. The external battery is more cold resistant, and good for charging down to -4°f or -20°c The external battery also provides far more capacity, up to 24ah vs 7.4ah of the built in battery. 24AH Provides up to 30 days of Battery Power- Tested Littleton Colorado Dec/15/2024 Jan/15/2025- Solar Disconnected- Cold Weather, average of 31 Degrees during this time.- 11 Days reached under 20 degrees Fahrenheit- Lowest temp 10 degrees- Shooting 7am to 7pm every 30 minutes10AH Provides up to 15 days of Battery Power- Tested Littleton Colorado Jan 10 through Jan 25 2025- Solar Disconnected- Cold Weather, average of 20 Degrees during this time.- 7 Days under 10 degrees Fahrenheit- Lowest temp -7 degrees Fahrenheit- Shooting 7am to 7pm every 30 minutes
