These are powerful batteries to replace my dead/weakened original B&D VersaPak batteries. I was able to grind the rust off the bottom quarter panel lip of our SUV on one charge with plenty of power to spare. Appears to be compatible with the original B&D charger. The fit is tight but not unmanageable. In fact, the tight fit allows you to pop the batteries slightly out of the charger gto prevent any charge leakage. I took some measurements that will explain why these have such a tight fit in the original B&D charger and Wizard and posted them here. Battery life for the job was excellent. Long term battery life and reliability remain to be seen.
Maximize Your Power Tools With Energup Upgraded 12V 3000MAh Lithium-Ion Battery For Milwaukee M12 - 2 Pack
52 Review
Energup 3.0Ah 40V MAX Replacement Battery For Black+Decker 40V LBX2040, LBXR36, LBXR2036, LST540 & More
40 Review
Linkstyle Universal Socket Wrench Set, 7Mm-19Mm Multi-Function Repair Kit With Drill Adapter Ratchet Gadget, Grip Hand Tools Gifts For Men Dad Husband Boyfriend DIY Handyman (4PCS)
44 Review
Circular saw Makita 5008MG, 1800 W blue/silver
68 Review
JAKEMY 69 In 1 Precision Ratchet Screwdriver Set For Household Repairs And Maintenance - Magnetic, Rotatable, And Disassemble Tool Kit For Furniture, Cars, Computers, And Electronics
29 Review
RoverTac 14-In-1 Multitool Pliers With Safety Lock: Perfect For Camping, Survival, And Simple Repairs
29 Review
Sharpen Your Tools With HTS 101I0 6Pc 180Mm / 40-600 Grit Diamond Flat File Set
28 Review
Wostore 180 Degree Tubing Bender For 1/4 5/16 And 3/8Inch Copper Aluminum Thin Stainless Steel Blue
24 Review