Power tool batteries

DeWalt DCB547 battery 54V 9.0Ah and FLEXVOLT Fast Charger Set

Free shipping

vhbw 1x Battery Replacement for Greenworks 80V Max, GBA80200, G80B4, G80B2 for Garden Tools (4000mAh, 80 V, Li-Ion) (1/5)

vhbw 1x Battery Replacement for Greenworks 80V Max, GBA80200, G80B4, G80B2 for Garden Tools (4000mAh, 80 V, Li-Ion) (2/5)

vhbw 1x Battery Replacement for Greenworks 80V Max, GBA80200, G80B4, G80B2 for Garden Tools (4000mAh, 80 V, Li-Ion) (3/5)

vhbw 1x Battery Replacement for Greenworks 80V Max, GBA80200, G80B4, G80B2 for Garden Tools (4000mAh, 80 V, Li-Ion)

Dewalt DCB546 18v 54v XR Flexvolt 6.0ah Battery Twin Pack + DCB116 Fast Charger (1/5)

Dewalt DCB546 18v 54v XR Flexvolt 6.0ah Battery Twin Pack + DCB116 Fast Charger (2/5)

Dewalt DCB546 18v 54v XR Flexvolt 6.0ah Battery Twin Pack + DCB116 Fast Charger (3/5)

Dewalt DCB546 18v 54v XR Flexvolt 6.0ah Battery Twin Pack + DCB116 Fast Charger

Free shipping

Makita BL1850 18V LXT 5.0Ah Li-Ion Batteries & DC18RC Charger Kit (2 x Batts & Charger)

Free shipping

Makita BL1850 18v 4 x 5.0ah Lithium Batteries DC18RD Dual Port Charger + Makpac (1/3)

Makita BL1850 18v 4 x 5.0ah Lithium Batteries DC18RD Dual Port Charger + Makpac

~~£309.99~~

Free shipping

-Genuine Replacement 40v Battery

Free shipping

DeWALT DCB183-XJ XR Battery 18V 2Ah Lithium-Ion (1/3)

DeWALT DCB183-XJ XR Battery 18V 2Ah Lithium-Ion

KIT WITH 2 LITHIUM BATTERIES 18V 4.0AH DXB4 + 1 CHARGER DXC4 CAT

Free shipping

vhbw Battery compatible with Hilti TE6-ALi, TE6-A36, TE 6-A36 AVR, TE 500-A36, CPC 36V Power Tools (6000 mAh, Li-Ion, 36 V) (1/5)

vhbw Battery compatible with Hilti TE6-ALi, TE6-A36, TE 6-A36 AVR, TE 500-A36, CPC 36V Power Tools (6000 mAh, Li-Ion, 36 V) (2/5)

vhbw Battery compatible with Hilti TE6-ALi, TE6-A36, TE 6-A36 AVR, TE 500-A36, CPC 36V Power Tools (6000 mAh, Li-Ion, 36 V) (3/5)

vhbw Battery compatible with Hilti TE6-ALi, TE6-A36, TE 6-A36 AVR, TE 500-A36, CPC 36V Power Tools (6000 mAh, Li-Ion, 36 V)

EXTENSILO 1x Battery Replacement for Stiga SBT 2580 AE, SBT 5080 AE, SBT 4080 AE for Lawnmower (2500mAh, 80 V, Li-Ion) (1/5)

EXTENSILO 1x Battery Replacement for Stiga SBT 2580 AE, SBT 5080 AE, SBT 4080 AE for Lawnmower (2500mAh, 80 V, Li-Ion) (2/5)

EXTENSILO 1x Battery Replacement for Stiga SBT 2580 AE, SBT 5080 AE, SBT 4080 AE for Lawnmower (2500mAh, 80 V, Li-Ion) (3/5)

EXTENSILO 1x Battery Replacement for Stiga SBT 2580 AE, SBT 5080 AE, SBT 4080 AE for Lawnmower (2500mAh, 80 V, Li-Ion)

£10 offered

RYOBI 5.0Ah Battery Twin Pack 2 x RB18L50

Free shipping

(2 Pack) 1X Batterie & 1X Chargeur Pour Makita BL1813G 18V 3,0Ah BL1815G BL1820G BL1840G HP457D DF457D DK18041 DK18015 Chargeur DC18WA (14.4V &18V ) (1/4)

(2 Pack) 1X Batterie & 1X Chargeur Pour Makita BL1813G 18V 3,0Ah BL1815G BL1820G BL1840G HP457D DF457D DK18041 DK18015 Chargeur DC18WA (14.4V &18V ) (2/4)

(2 Pack) 1X Batterie & 1X Chargeur Pour Makita BL1813G 18V 3,0Ah BL1815G BL1820G BL1840G HP457D DF457D DK18041 DK18015 Chargeur DC18WA (14.4V &18V )

~~£59.90~~

Free shipping

Dewalt DCB546 18v / 54v XR Flexvolt 6.0ah Battery DCB546-XJ - Twin Pack (1/3)

Dewalt DCB546 18v / 54v XR Flexvolt 6.0ah Battery DCB546-XJ - Twin Pack

~~£188.99~~

Free shipping

Dewalt DCB183 XR 18v Lithium Ion Battery Twin Pack 2.0Ah + DCB115 Charger (1/6)

Dewalt DCB183 XR 18v Lithium Ion Battery Twin Pack 2.0Ah + DCB115 Charger (2/6)

Dewalt DCB183 XR 18v Lithium Ion Battery Twin Pack 2.0Ah + DCB115 Charger (3/6)

Dewalt DCB183 XR 18v Lithium Ion Battery Twin Pack 2.0Ah + DCB115 Charger (4/6)

Dewalt DCB183 XR 18v Lithium Ion Battery Twin Pack 2.0Ah + DCB115 Charger

~~£89.99~~

Free shipping

Dewalt DCB184 5.0ah 18v XR Lithium Ion Battery Twin Pack + Tstak Drill Case (1/5)

Dewalt DCB184 5.0ah 18v XR Lithium Ion Battery Twin Pack + Tstak Drill Case (2/5)

Dewalt DCB184 5.0ah 18v XR Lithium Ion Battery Twin Pack + Tstak Drill Case (3/5)

Dewalt DCB184 5.0ah 18v XR Lithium Ion Battery Twin Pack + Tstak Drill Case

~~£124.99~~

Free shipping

2X Battery 14,4V for BOSCH PSR 14.4 LI-2 PSR 14.4 LI PSB 14.4 LI-2 lampe PML 18 LI Series for Bosch 2 607 225 273, 2607 225 274, 2 607 225 275, 2 607 225 472, 1 600 Z00 002 1.5Ah (1/5)

2X Battery 14,4V for BOSCH PSR 14.4 LI-2 PSR 14.4 LI PSB 14.4 LI-2 lampe PML 18 LI Series for Bosch 2 607 225 273, 2607 225 274, 2 607 225 275, 2 607 225 472, 1 600 Z00 002 1.5Ah

~~£49.90~~

Free shipping

DeWalt DCB183 18V XR 2.0Ah Li-Ion Batteries (Five Pack)

Free shipping

DEWALT 2 x DCB184 18v Li-ion battery 5.0Ah (1/6)

DEWALT 2 x DCB184 18v Li-ion battery 5.0Ah (2/6)

DEWALT 2 x DCB184 18v Li-ion battery 5.0Ah (3/6)

DEWALT 2 x DCB184 18v Li-ion battery 5.0Ah (4/6)

DEWALT 2 x DCB184 18v Li-ion battery 5.0Ah

Free shipping

Einhell 3.0Ah 18V Battery Power X-Change PXC Rechargeable Dust Resistant LED (1/5)

Einhell 3.0Ah 18V Battery Power X-Change PXC Rechargeable Dust Resistant LED (2/5)

Einhell 3.0Ah 18V Battery Power X-Change PXC Rechargeable Dust Resistant LED (3/5)

Einhell 3.0Ah 18V Battery Power X-Change PXC Rechargeable Dust Resistant LED

~~£47.99~~

Free shipping

vhbw Battery Replacement for Bosch 2607335097, 2 607 335 097, 2607335098, 2607335163 for Electric Power Tools (3000mAh NiMH 24V) (1/5)

vhbw Battery Replacement for Bosch 2607335097, 2 607 335 097, 2607335098, 2607335163 for Electric Power Tools (3000mAh NiMH 24V) (2/5)

vhbw Battery Replacement for Bosch 2607335097, 2 607 335 097, 2607335098, 2607335163 for Electric Power Tools (3000mAh NiMH 24V) (3/5)

vhbw Battery Replacement for Bosch 2607335097, 2 607 335 097, 2607335098, 2607335163 for Electric Power Tools (3000mAh NiMH 24V)

Bosch 18v 4.0Ah Battery Li-ion Cordless 4ah Coolpack & GAL18V40 Fast Charger (1/4)

Bosch 18v 4.0Ah Battery Li-ion Cordless 4ah Coolpack & GAL18V40 Fast Charger (2/4)

Bosch 18v 4.0Ah Battery Li-ion Cordless 4ah Coolpack & GAL18V40 Fast Charger

~~£79.99~~

Free shipping

MAKITA BL1041B 12v Li-ion battery 4.0Ah (1/8)

MAKITA BL1041B 12v Li-ion battery 4.0Ah (2/8)

MAKITA BL1041B 12v Li-ion battery 4.0Ah (3/8)

MAKITA BL1041B 12v Li-ion battery 4.0Ah (4/8)

MAKITA BL1041B 12v Li-ion battery 4.0Ah (5/8)

MAKITA BL1041B 12v Li-ion battery 4.0Ah (6/8)

MAKITA BL1041B 12v Li-ion battery 4.0Ah

Free shipping

Makita BL1020B 10.8v CXT Lithium Ion Slide Type 2.0ah Battery + DC10WC Charger (1/4)

Makita BL1020B 10.8v CXT Lithium Ion Slide Type 2.0ah Battery + DC10WC Charger (2/4)

Makita BL1020B 10.8v CXT Lithium Ion Slide Type 2.0ah Battery + DC10WC Charger

Free shipping

vhbw 1x Battery Replacement for Stiga SBT 4080 AE, SBT 5080 AE, SBT 2580AE for Lawnmower (4000mAh, 80 V, Li-Ion) (1/5)

vhbw 1x Battery Replacement for Stiga SBT 4080 AE, SBT 5080 AE, SBT 2580AE for Lawnmower (4000mAh, 80 V, Li-Ion) (2/5)

vhbw 1x Battery Replacement for Stiga SBT 4080 AE, SBT 5080 AE, SBT 2580AE for Lawnmower (4000mAh, 80 V, Li-Ion) (3/5)

vhbw 1x Battery Replacement for Stiga SBT 4080 AE, SBT 5080 AE, SBT 2580AE for Lawnmower (4000mAh, 80 V, Li-Ion)

Makita BL1860 18V LXT 6.0Ah Li-Ion Battery

Free shipping

Einhell Professional 18v 4.0Ah PLUS Battery + Fast Charger PXC Starter Kit (1/5)

Einhell Professional 18v 4.0Ah PLUS Battery + Fast Charger PXC Starter Kit (2/5)

Einhell Professional 18v 4.0Ah PLUS Battery + Fast Charger PXC Starter Kit (3/5)

Einhell Professional 18v 4.0Ah PLUS Battery + Fast Charger PXC Starter Kit

Free shipping

Makita BL4040 40Vmax XGT 4.0Ah Li-ion Battery

~~£199.26~~

Free shipping

vhbw 3x Battery compatible with Festool CXS 2.6 Li Set, CXS 2.6 Li Plus, CXS 1.5 Li Set, CXS Li Power Tools (2000 mAh, Li-Ion, 10.8 V) (1/5)

vhbw 3x Battery compatible with Festool CXS 2.6 Li Set, CXS 2.6 Li Plus, CXS 1.5 Li Set, CXS Li Power Tools (2000 mAh, Li-Ion, 10.8 V) (2/5)

vhbw 3x Battery compatible with Festool CXS 2.6 Li Set, CXS 2.6 Li Plus, CXS 1.5 Li Set, CXS Li Power Tools (2000 mAh, Li-Ion, 10.8 V) (3/5)

vhbw 3x Battery compatible with Festool CXS 2.6 Li Set, CXS 2.6 Li Plus, CXS 1.5 Li Set, CXS Li Power Tools (2000 mAh, Li-Ion, 10.8 V)

Makita 191C91-1 18v LXT Portable Power Supply PDC01 + DC18RD + 4 5ah Batteries (1/4)

Makita 191C91-1 18v LXT Portable Power Supply PDC01 + DC18RD + 4 5ah Batteries (2/4)

Makita 191C91-1 18v LXT Portable Power Supply PDC01 + DC18RD + 4 5ah Batteries

Free shipping

vhbw Battery compatible with Milwaukee V28 IW, V28 MS, V28 PD, V28 SG, V28 SX, V28 VC Electric Power Tools (3000mAh Li-Ion 28V) (1/5)

vhbw Battery compatible with Milwaukee V28 IW, V28 MS, V28 PD, V28 SG, V28 SX, V28 VC Electric Power Tools (3000mAh Li-Ion 28V) (2/5)

vhbw Battery compatible with Milwaukee V28 IW, V28 MS, V28 PD, V28 SG, V28 SX, V28 VC Electric Power Tools (3000mAh Li-Ion 28V) (3/5)

vhbw Battery compatible with Milwaukee V28 IW, V28 MS, V28 PD, V28 SG, V28 SX, V28 VC Electric Power Tools (3000mAh Li-Ion 28V)

Wolf 18V Li-Ion 1.5Ah Battery

Free shipping

Genuine Makita 18V Batteries - 1x 5.0Ah BL1850 1x 3.0Ah BL1830 LXT Star Battery (1/5)

Genuine Makita 18V Batteries - 1x 5.0Ah BL1850 1x 3.0Ah BL1830 LXT Star Battery (2/5)

Genuine Makita 18V Batteries - 1x 5.0Ah BL1850 1x 3.0Ah BL1830 LXT Star Battery (3/5)

Genuine Makita 18V Batteries - 1x 5.0Ah BL1850 1x 3.0Ah BL1830 LXT Star Battery

~~£119.99~~

Free shipping

EXTENSILO Battery compatible with Yard Force Compact 400Ri, 280R Lawnmower (2500mAh, 18 V, Li-Ion) (1/5)

EXTENSILO Battery compatible with Yard Force Compact 400Ri, 280R Lawnmower (2500mAh, 18 V, Li-Ion) (2/5)

EXTENSILO Battery compatible with Yard Force Compact 400Ri, 280R Lawnmower (2500mAh, 18 V, Li-Ion) (3/5)

EXTENSILO Battery compatible with Yard Force Compact 400Ri, 280R Lawnmower (2500mAh, 18 V, Li-Ion)

Sealey Power Tool Battery 20V 2Ah for CP314 & CP316 CP3BP

Free shipping

MILWAUKEE M18FB6 18V 6.0AH FORGE BATTERY

~~£478.80~~

Free shipping

Wolf 18v 3Ah Battery

Free shipping

Dewalt DCB124 XR Slide Battery Pack 12V 3.0Ah Li-ion DCB124-XJ - Fits 10.8v X 2 (1/3)

Dewalt DCB124 XR Slide Battery Pack 12V 3.0Ah Li-ion DCB124-XJ - Fits 10.8v X 2

Free shipping

EXTENSILO Battery compatible with Bosch GBH24VF, BACCS 24V, GBH-24V, 52324, 52324B, GCM24V, GKG 24V Power Tools (3300 mAh, NiMH, 24 V) (1/4)

EXTENSILO Battery compatible with Bosch GBH24VF, BACCS 24V, GBH-24V, 52324, 52324B, GCM24V, GKG 24V Power Tools (3300 mAh, NiMH, 24 V) (2/4)

EXTENSILO Battery compatible with Bosch GBH24VF, BACCS 24V, GBH-24V, 52324, 52324B, GCM24V, GKG 24V Power Tools (3300 mAh, NiMH, 24 V)

EXTENSILO Battery compatible with Makita BJS130RFE, BJS130F, BJS161F, BJS130Z, BJS161RFE, BJS161, BJS161Z Power Tools (5000 mAh, Li-Ion, 18 V) (1/5)

EXTENSILO Battery compatible with Makita BJS130RFE, BJS130F, BJS161F, BJS130Z, BJS161RFE, BJS161, BJS161Z Power Tools (5000 mAh, Li-Ion, 18 V) (2/5)

EXTENSILO Battery compatible with Makita BJS130RFE, BJS130F, BJS161F, BJS130Z, BJS161RFE, BJS161, BJS161Z Power Tools (5000 mAh, Li-Ion, 18 V) (3/5)

EXTENSILO Battery compatible with Makita BJS130RFE, BJS130F, BJS161F, BJS130Z, BJS161RFE, BJS161, BJS161Z Power Tools (5000 mAh, Li-Ion, 18 V)

EXTENSILO Battery compatible with Makita CL180FD, CL180FDRFW, CL180FDZW, CF201DZ, BVR850Z, CF201DZW Power Tools (5000 mAh, Li-Ion, 18 V) (1/5)

EXTENSILO Battery compatible with Makita CL180FD, CL180FDRFW, CL180FDZW, CF201DZ, BVR850Z, CF201DZW Power Tools (5000 mAh, Li-Ion, 18 V) (2/5)

EXTENSILO Battery compatible with Makita CL180FD, CL180FDRFW, CL180FDZW, CF201DZ, BVR850Z, CF201DZW Power Tools (5000 mAh, Li-Ion, 18 V) (3/5)

EXTENSILO Battery compatible with Makita CL180FD, CL180FDRFW, CL180FDZW, CF201DZ, BVR850Z, CF201DZW Power Tools (5000 mAh, Li-Ion, 18 V)

EXTENSILO Battery compatible with Makita BDF456Z, BFR550L, BFR550F, BDF458, BFR550Z, BFR550, BFR550RFE Power Tools (5000 mAh, Li-Ion, 18 V) (1/5)

EXTENSILO Battery compatible with Makita BDF456Z, BFR550L, BFR550F, BDF458, BFR550Z, BFR550, BFR550RFE Power Tools (5000 mAh, Li-Ion, 18 V) (2/5)

EXTENSILO Battery compatible with Makita BDF456Z, BFR550L, BFR550F, BDF458, BFR550Z, BFR550, BFR550RFE Power Tools (5000 mAh, Li-Ion, 18 V) (3/5)

EXTENSILO Battery compatible with Makita BDF456Z, BFR550L, BFR550F, BDF458, BFR550Z, BFR550, BFR550RFE Power Tools (5000 mAh, Li-Ion, 18 V)

Wolf 12V 1.5Ah Lithium-Ion Battery, Spare for Wolf 12V Cordless Range (2021+)

Free shipping

Sealey SV20 Series Power Tool Battery 20V 6Ah - Pack of 2 BK06 (1/2)

4 options

Sealey SV20 Series Power Tool Battery 20V 6Ah - Pack of 2 BK06

Free shipping

5 X Genuine Makita BL1850 18V 5.0Ah Li-Ion LXT Battery 5AH Star Battery BL1850B

Free shipping

Husqvarna BLi200 36v Li-ion Battery 5.2Ah

~~£262.80~~

Free shipping

EXTENSILO 2x Replacement Battery compatible with Bosch GST 24V, PSB 24VE-2, SAW 24V Electric Power Tools (3300 mAh, NiMH, 24 V) (1/4)

EXTENSILO 2x Replacement Battery compatible with Bosch GST 24V, PSB 24VE-2, SAW 24V Electric Power Tools (3300 mAh, NiMH, 24 V) (2/4)

EXTENSILO 2x Replacement Battery compatible with Bosch GST 24V, PSB 24VE-2, SAW 24V Electric Power Tools (3300 mAh, NiMH, 24 V)

EXTENSILO 3x Battery Replacement for Metabo 6.25499.00, 6.25527 for Electric Power Tools (5000 mAh, Li-ion, 18 V) (1/5)

EXTENSILO 3x Battery Replacement for Metabo 6.25499.00, 6.25527 for Electric Power Tools (5000 mAh, Li-ion, 18 V) (2/5)

EXTENSILO 3x Battery Replacement for Metabo 6.25499.00, 6.25527 for Electric Power Tools (5000 mAh, Li-ion, 18 V) (3/5)

EXTENSILO 3x Battery Replacement for Metabo 6.25499.00, 6.25527 for Electric Power Tools (5000 mAh, Li-ion, 18 V)

2 x Dewalt DCB548 18v / 54v XR Flexvolt 12.0ah Battery DCB548-XJ Flex Volt

~~£387.95~~

Free shipping

MAKITA BL1860B/DC18RC 2x6Ah 18v Charger & battery pack (1/3)

MAKITA BL1860B/DC18RC 2x6Ah 18v Charger & battery pack

Free shipping

Dewalt DCB183 XR 18v Lithium Ion Battery Pack 2.0Ah + DCB115 Charger

Free shipping

vhbw 1x Battery compatible with Worx WX820, WX822 Power Tools (2000 mAh, Li-Ion, 20 V) (1/5)

vhbw 1x Battery compatible with Worx WX820, WX822 Power Tools (2000 mAh, Li-Ion, 20 V) (2/5)

vhbw 1x Battery compatible with Worx WX820, WX822 Power Tools (2000 mAh, Li-Ion, 20 V) (3/5)

vhbw 1x Battery compatible with Worx WX820, WX822 Power Tools (2000 mAh, Li-Ion, 20 V)

Genuine Makita BL1020 BL1021B 10.8v 12v CXT Lithium Ion Slide Type 2.0ah Battery (1/7)

Genuine Makita BL1020 BL1021B 10.8v 12v CXT Lithium Ion Slide Type 2.0ah Battery (2/7)

Genuine Makita BL1020 BL1021B 10.8v 12v CXT Lithium Ion Slide Type 2.0ah Battery (3/7)

Genuine Makita BL1020 BL1021B 10.8v 12v CXT Lithium Ion Slide Type 2.0ah Battery (4/7)

Genuine Makita BL1020 BL1021B 10.8v 12v CXT Lithium Ion Slide Type 2.0ah Battery (5/7)

Genuine Makita BL1020 BL1021B 10.8v 12v CXT Lithium Ion Slide Type 2.0ah Battery

~~£40.15~~

Free shipping

DEWALT DCBP034 18V 2.0AH POWERSTACK BATTERY

~~£180.00~~

vhbw Replacement Battery compatible with Ferrex R800 Easy+ Lawnmower (1500 mAh, 25.2 V, Li-ion) (1/5)

vhbw Replacement Battery compatible with Ferrex R800 Easy+ Lawnmower (1500 mAh, 25.2 V, Li-ion) (2/5)

vhbw Replacement Battery compatible with Ferrex R800 Easy+ Lawnmower (1500 mAh, 25.2 V, Li-ion) (3/5)

vhbw Replacement Battery compatible with Ferrex R800 Easy+ Lawnmower (1500 mAh, 25.2 V, Li-ion)

vhbw 3x Battery Replacement for Ridgid 130446007, 130188001, 200901008, 130446011, 200901019, 200901009 for Power Tools (1500 mAh, Li-Ion, 12 V) (1/5)

vhbw 3x Battery Replacement for Ridgid 130446007, 130188001, 200901008, 130446011, 200901019, 200901009 for Power Tools (1500 mAh, Li-Ion, 12 V) (2/5)

vhbw 3x Battery Replacement for Ridgid 130446007, 130188001, 200901008, 130446011, 200901019, 200901009 for Power Tools (1500 mAh, Li-Ion, 12 V) (3/5)

vhbw 3x Battery Replacement for Ridgid 130446007, 130188001, 200901008, 130446011, 200901019, 200901009 for Power Tools (1500 mAh, Li-Ion, 12 V)

BLACK + DECKER BL202018-XJ BL2018 Slide Battery Pack 18V 2.0Ah Li-ion B/DBL2018 (1/4)

BLACK + DECKER BL202018-XJ BL2018 Slide Battery Pack 18V 2.0Ah Li-ion B/DBL2018 (2/4)

BLACK + DECKER BL202018-XJ BL2018 Slide Battery Pack 18V 2.0Ah Li-ion B/DBL2018 (3/4)

2 options

BLACK + DECKER BL202018-XJ BL2018 Slide Battery Pack 18V 2.0Ah Li-ion B/DBL2018

141

Nicolas

team

Our recommended products

Our experts' choice by price and design

Low price

Bosch Green 18v PBA 18v 2.5Ah W-A Lithium Battery Power For All Battery Alliance

Best value for money

DEWALT DCB546 XR FlexVolt Slide Battery 18/54V 6.0/2.0Ah Li-ion DEWDCB546

High quality

DeWalt DCB547 18V/54V XR FLEXVOLT 9.0Ah Li-Ion Battery with Protective Cap

113£45

4.6

Free delivery

Narrow down your search

Makita 18v batteries

Makita 6ah battery

Battery pack

Makita 18v battery charger

Lipo battery

Ferrex battery

Filter by

Power tool batteries