Kindly noted : This battery is only fit with Li-ion Battery. If your original battery or Charger is NI-CD or NI-MH, please kindly do not buy this battery. Because it will not been charged, it also not work with your original tools. Many thanks for your understanding and support.

Features:
Type:lithium ion
Volts: 18 V
Capacity: 4000mAh/ 72 Wh
Warranty period : 12 Months
Replace battery, not original battery

Compatible Charger Model:
CTC720, CTC131

Replace for Battery: CTB8185 CTB7185 CTB8187

Compatible Tool Models:
CT7850 Series Impacts Wrenches
CDR7850H Series Impacts Wrenches
CTL7850 Series Impacts WrenchesCT8810 Series 18 V 3/8" Drive Impacts Wrenches
CT8815 Series 18 V 1/2" Drive Impacts Wrenches
CT8850 Series 18 V 1/2" Drive Cordless Impact Wrenchs
CT8850 Series 18 V 1/4” Hex Quick Change Cordless Impact Driver
CT9075 Series 18 V 1/2" Drive Brushless Impacts Wrenchs
CT9100 Series 18 V 3/4" Drive Brushless Impacts Wrenchs
CT9010 Series 18 V 3/8" Drive Brushless Impacts Wrenchs

18 V 1/2" MonsterLithium Cordless Hammer Drill
CDR8850HDB CDR8850HK2 CDR8850HGDB CDR8850HHVDB CDR8850HGK2 CDR8850HHVK2 CDRU8850HU2

18 V 1/2" MonsterLithium Compact Cordless Drill
CDR8815DB CDR8815K2 CDR8815GDB CDR8815G CDR8815HVDB CDR8815HVK2 CDR8815GK2

18 V Cordless Grease Gun
CGG8850DB CGG8850K1 CGG8850GK1 CGG8850HVK1 CGGA8850PVKT

18 V Cordless Reciprocating Saw
CTRS8850DB CTRS8850K1 CTRS8850W1 CTRS8850HVDB CTRS8850GK1 CTRS8850HVK1

18 V Cordless Grinder/Cut-off Tool
CTGR8850DB CTGR8850K1 CTGR8855DB CTGR8855K1 CTGR8845DB CTGR8855U1

18 V 18" MonsterLithium Cordless Band File Sander
CTBF8818DB CTBF8818K1
Fits for Charger: CTC720 ----REV2.0 ,REV2.2 Version