Makita 98C431 Power Source Kit inc 4x 4.0Ah Batts, Twin Charger & Makpac Case This kit contains 4x Makita BL1840B 18v 4.0Ah Li-Ion batteries, a DC18RD twin 18v intelligent charger and a MakPac 3 stacking case plus inlay. The BL1840B has a massive 4.0Ah capacity with increased run time of over 33% over the 3.0Ah version and a charge time of just 40 minutes, compatible with all starred terminal and yellow terminal machines in the LXT family. These batteries have a battery charge indicator LED. The DC18RD charges two 18v Li-Ion batteries simultaneously and features a USB port for charging mobile devices. The rapid charge technology selects the optimum voltage and current and temperature is controlled by the forced air system that circulates air through the battery to prevent overheating. and a full charge sound alert confirms when the charge cycle is complete. BL1840 4.0Ah Lithium-ion Batteries FEATURES Battery capacity indicator LED\'s show how much juice you have left on demand 33% more runtime than 3.0Ah battery (BL 1830) with no compromise on weight or size 40 minute charge time with either DC18RC or DC18RA charger Makita BL1840 18v 4Ah Li-ion battery is compatible with 18v tools if they have a star on the connector plate or has a yellow connector plate SPECIFICATION Voltage: 18v Battery Type: Lithium-Ion Battery Voltage: 18v DC18RD Twin Charger FEATURES Built-in USB port for charging portable electronic devices Built-in fan circulates air through the battery during the charging process to cool the battery for faster charge time Optimizes battery life by actively controlling current, voltage and temperature 1 year warranty on the charger A USB port that provides 1.5A output for charging smart phones, tablets, etc Full charge sound alert LED charging display Twin charging ports Forced cooling system Electronic current limiter for overload protection CHARGE TIMES Charges 2x 18V Compact Lithium-Ion 2.0Ah batteries in only 18 mins Charges 2x 18V LXT® Lithium-Ion 3.0Ah batteries in only 22 mins Charges 2x 18V LXT® Lithium-Ion 4.0Ah batteries in only 36 mins Charges 2x 18V LXT® Lithium-Ion 5.0Ah batteries in only 45 mins SPECIFICATION Battery Range: 7.2 - 18 v Battery Type: Li-ion Input Voltage: 240v 821551-8 Makpac Connector Stacking Case Type 3 FEATURES Stackable for storage and easy transportation Strong and collapsible handles Four different sizes to choose from in the Makpac range - all connectable SPECIFICATION Connector Case (Type 3) Length: 396 mm Width: 296 mm Height: 210 mm Weight: 1.9kg