Welcome to Defender Canada! 
Battery Accessories & Cables
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14% off
Ancor Marine Tinned Copper Battery Cable
$1.99 - $643.17$1.78 - $546.81 -
14% off
Ancor Marine Battery Cable Assembly with Lugs
$26.16 - $50.22$22.32 - $42.78 -
Victron Energy Smart BatteryProtect - 6-35V DC
$78.78 - $154.49 -
Victron Energy Lynx Smart Battery Management System
$1,324.78 - $1,824.91 -
19% offBlue Sea Systems Powerpost Cable Connector
$22.56$18.16 -
19% offBlue Sea Systems Dual PowerPost Cable Connectors
$35.62$28.62 -
17% off
Blue Sea Systems CableCap Stud Insulators
$5.05 - $6.18$4.16 - $5.07 -
NOCO Commercial Marine Grade Dual Battery Box - 2 Group 8D Batteries - HM485
$333.65 -
9% offTodd Universal Marine Grade Battery Box - 10-10187
$142.27$128.10 -
9% offAncor Lead Battery Terminal Set - 260325
$13.96$12.63 -
9% offSeachoice Tinned Copper Battery Cable Terminals
$9.77 - $245.87$8.85 - $221.34 -
NOCO Commercial Marine Grade Battery Box - Group 4D Battery - HM408
$210.96 -
NOCO Marine Grade Plastic Battery Tray - Group 27 or 31 Battery - BT27
$10.73 -
9% off
Ancor Tinned Brass Battery Terminal Set - 260322
$45.89$41.36 -
Victron Energy LiFePO4 VE.Bus BMS V2 Battery - 12-48V DC - BMS300200200
$228.94 -
9% offT-H Marine Battery Holder Tray with Stainless Buckle
$27.71$24.99 -
NOCO Marine Grade Plastic Battery Tray - Group 24 Battery - BT24
$10.32 -
19% off
Blue Sea Systems Dual Entry Cable Cap
$13.86$11.20 -
9% offAttwood Heavy-Duty Battery Tray
$20.22 - $26.54$18.25 - $23.95 -
9% offAttwood PowerGuard Battery Box
$16.30 - $25.82$14.74 - $23.29 -
9% off
Seachoice Tinned Copper Battery Cable Assembly
$28.21 - $91.10$25.45 - $82.05 -
9% offMarinco Battery Direct Connect - 12VTR
$29.58$26.69 -
Victron Energy Smart BMS 12/200 Battery Management System - BMS210055000
$340.67 -
9% offT-H Marine Optima Battery Tray - NBH-31-SSC-OPT
$42.92$38.69 -
9% offT-H Marine Dual Battery Holder Tray with Poly Strap - DBH-27P-DP
$44.40$40.02 -
18% offBlue Sea Systems Rotating CableCap Insulators - 4001
$9.23$7.50 -
NOCO Commercial Marine Grade Battery Box - Group 8D Battery - HM484
$218.26 -
NOCO Marine Grade Snap-Top Battery Box - Group 24 Battery - HM300BK
$21.07 -
9% offMoeller Marine Grade Molded Plastic Battery Tray - Group 24 Battery - 042215
$27.78$25.06 -
9% off
Moeller Marine Grade Molded Plastic Battery Tray - Group 29 or 31 Battery - 042216
$38.56$34.77 -
18% offBlue Sea Systems Stud Mount Insulating Boots (2-Pack) - 4000
$8.78$7.14 -
19% offBlue Sea Systems Mini Powerpost Cable Connector
$15.40$12.44 -
NOCO Group U1 Battery Box - BGU1
$19.58 -
9% offSeachoice Battery Terminal - Clamp Style
$14.16 - $38.08$12.80 - $34.33 -
9% offSeachoice Battery Tray with Strap
$17.16$15.50 -
9% offSeachoice Motorwell Boot
$11.89 - $16.22$10.77 - $14.66 -
9% offSeachoice Post Top Style Battery Terminal
$11.31 - $12.29$10.25 - $11.12 -
9% offSierra Marine Rated Battery Fuse Mounting Bar - FS84240
$44.38$40.00 -
9% offT-H Marine Battery Hold Down Tray
$19.52$17.62 -
38% offNOCO Marine Grade Snap-Top Battery Box - Single 6V Battery - HM306BK
$24.58$15.00 -
9% off
Moeller Marine Grade Molded Plastic Battery Tray - Group 27 Battery - 042232
$34.96$31.53 -
17% offBlue Sea Systems PowerPost Insulator - 4004
$5.94$4.88 -
18% offBlue Sea Systems Dual Post I/O Cable Caps - 4018
$9.10$7.40 -
19% offBlue Sea Systems Powerpost Plus Cable Connector
$40.00 - $41.46$32.12 - $33.29 -
9% offBlue Sea Systems Straight Terminal Cable Caps
$8.54$7.75 -
9% offAttwood Battery Tray with Straps
$13.44 - $14.00$12.16 -
9% offAttwood Heavy-Duty Adjustable Battery Tray
$16.94$15.30 -
NOCO Battery Box Strap - 48" - BS48R
$15.18