B&D battery drill

Hi All
I have a very old B&D battery drill (KC96V) which is 9.6v. Problem is the battery is U/S and I can't find another 9.6v battery (A9251) to replace it. However, B&Q have a B&D battery which is exactly the same except it is 12v (A9252). What I am wondering is... will this battery be ok with my drill? Will 2.4v extra make that much difference?
Any advice welcome Andy
Add pictures here
<% if( /^image/.test(type) ){ %>
<% } %>
Add image file

HomeOwnersHub.com is a website for homeowners and building and maintenance pros. It is not affiliated with any of the manufacturers or service providers discussed here. All logos and trade names are the property of their respective owners.