Herelink 1.0 replacement battery

Hello
Our herelink 1.0 ground unit has a battery appears to be somewhat unhealthy as it runs out of power rapidly and charges very slowly.
Is there any official battery replacement options, as the only one we’ve been able to find in the battery pack for the herelink 1.1?
Thanks in advance

Did you receive any further information about this Herelink battery for v1.0