This is a fresh Sokkia BDC25B Ni-MH battery pack, brand new and never opened – still in its original packaging, exactly like you’d get from a retail shelf (unless it’s in a plain box, but it’s factory-fresh either way).
It’s built for Sokkia SET series total stations, and it’s a direct drop-in replacement for the older BDC25A model.

If you’re out in the field doing surveys, you know how annoying it is when your battery dies mid-measurement.
This pack gives you reliable Ni-MH power, so you can keep shooting angles and distances without hunting for an outlet.
The model number is D70225B, and it’s sold by LS-eBay Seller time_diary – they’ve got a solid rep for survey gear.

No MPN listed – they say “Does Not Apply” – but the fitment is spot-on for Sokkia SET stations.
And don’t worry about California Prop 65, it’s marked “N” so you’re good to go.
Just pop it in, charge it up, and you’re back to work.
It holds charge well and handles the typical workday with ease.

One thing to keep in mind: this is a Ni-MH chemistry, so it’s got a bit of memory effect, but nothing a full discharge/charge cycle won’t fix.