Amazon.com: Replacement Battery for Fluke 120, 123, & 124 Series ScopeMeters and Fluke 43 & 43B Power Quality Analyzers. 3500 mAh : Industrial & Scientific
Fluke VRLA tester BT520 Reading range (battery testers) < 600 V Rechargeable, Battery 4489981 | Conrad.com
ZZcell Battery Compatible for Fluke BP120MH, B11483, 123, 123S Scopemeter 120, 43, 43B Power Quality Analyzers 4.8V 3000mAh - Walmart.com
FLUKE BP120MH Fluke | Fluke Oscilloscope Battery Pack BP120, For Use With 120 Series, 43 Series, 43B Series, Battery Chemistry NiMH | 548-8938 | RS Components