> The hardware supplier that we use no longer has the battery. Therefore, we cannot sell you the battery. What we can do is provide you with the part numbers so you can source it elsewhere. If you're considering sourcing the battery for the Darter Pro 5 from another supplier, please note that the model number for the battery is N150BAT-4, and the original part number is 6-87-N15ZS-51E01. Third-party battery sellers may display one or both of these numbers and might also list other compatible part numbers that are suitable for the same model.
It's actually a Darter Pro 6, but the battery part number is correct in that text.
You can not purchase this battery, it no longer exists. There are a few sketchy websites which say that they sell it, but they will cancel your order a few days after placing it and tell you that there is "lack of material".
If I search for battery stuff shows up, but they only ship bare batteries to the 48 states and Canada.
Contacting support should be able to help you too.