Light and efficient Lithium-Ion10 Pulsar IPS10 battery (B-Pack). The capacity of up to 10 Ah ensures very long operation time in all conditions - up to 20 hours. Suitable for Trail / Helion / Digisight Ultra / Vivid / Forward F devices and with slightly larger sizes offers 2x more capacity than the IPS5 battery included in the kit. An additional battery can be used as a replacement and so-called battery back-up from the set, in case the battery from the set is discharged and you will need to recharge it in the field.