Welcome to Defender Canada! 
Batteries & Accessories
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9% offTodd Universal Marine Grade Battery Box - 10-10187
$136.45$122.87 -
Blue Sea Systems CableCap Stud Insulators
$5.43 - $6.72 -
Blue Sea Systems Dual Post I/O Cable Caps - 4018
$12.68 -
Blue Sea Systems Powerpost Cable Connector
$21.91 -
Ancor Marine Tinned Copper Battery Cable
$1.93 - $717.57 -
Attwood Heavy-Duty Battery Tray
$19.09 - $25.11 -
Attwood PowerGuard Battery Box
$15.65 - $24.78 -
Seachoice Battery Tray for Optima 27/31 - 21951
$22.07 -
Moeller Marine Grade Molded Plastic Battery Tray - Group 27 Battery - 042232
$34.20 -
Marinco Battery Direct Connect - 12VTR
$28.39 -
Victron Energy LiFePO4 VE.Bus BMS Battery - 12-48V DC - BMS300200000
$164.82 -
Victron Energy Smart BMS CL 12/100 Battery Management System - BMS110022000
$212.44 -
Victron Energy Smart BMS 12/200 Battery Management System - BMS210055000
$326.70 -
Victron Energy Smart LiFePO4 Battery SmallBMS - BMS400100000
$69.62 -
Victron Energy LiFePO4 VE.Bus BMS V2 Battery - 12-48V DC - BMS300200200
$219.56 -
Victron Energy BatteryProtect - 6-35V DC
$51.77 - $123.19 -
Victron Energy Smart BatteryProtect - 6-35V DC
$75.57 - $148.17 -
9% offT-H Marine Battery Hold Down Tray
$18.74$16.92 - $18.74 -
T-H Marine Battery Holder Tray with Stainless Buckle
$27.21 -
T-H Marine LED Battery Tester - BE-EL-51004-DP
$26.04 -
T-H Marine Optima Battery Tray - NBH-31-SSC-OPT
$42.58 -
T-H Marine Dual Battery Holder Tray with Poly Strap - DBH-27P-DP
$44.00 -
Todd Marine Grade Battery Box - Group 4D Battery - 10-12000
$209.30 -
NOCO Commercial Marine Grade Battery Box - Group 4D Battery - HM408
$202.32 -
NOCO Commercial Marine Grade Battery Box - Group 8D Battery - HM484
$209.32 -
NOCO Commercial Marine Grade Dual Battery Box - 2 Group 8D Batteries - HM485
$319.97 -
NOCO Commercial Marine Grade Dual Battery Box - Holds (2) 6V Batteries - HM426
$210.72 -
NOCO Marine Grade Plastic Battery Tray - Group 24 Battery - BT24
$9.92 -
NOCO Marine Grade Plastic Battery Tray - Group 27 or 31 Battery - BT27
$10.31 -
NOCO Marine Grade Snap-Top Battery Box - Group 24 Battery - HM300BK
$20.23 -
NOCO Marine Grade Snap-Top Battery Box - Single 6V Battery - HM306BK
$23.03 -
Blue Sea Systems Dual PowerPost Cable Connectors
$34.18 - $35.58 -
Blue Sea Systems Rotating CableCap Insulators - 4001
$10.09 -
Moeller Marine Grade Molded Plastic Battery Tray - Group 24 Battery - 042215
$26.66 -
Moeller Marine Grade Molded Plastic Battery Tray - Group 29 or 31 Battery - 042216
$37.00 -
Cannon Replacement Battery End Cable - 1903017
$56.58 -
Blue Sea Systems Mini Powerpost Cable Connector
$14.99 -
19% offBlue Sea Systems Powerpost Plus Cable Connector
$38.38 - $39.78$30.82 - $39.78 -
Ancor Lead Battery Terminal Set - 260325
$14.28 -
Ancor Marine Battery Cable Assembly with Lugs
$26.81 - $50.98 -
Ancor Tinned Brass Battery Terminal Set - 260322
$46.78 -
Victron Energy Lynx Smart Battery Management System
$1,270.36 - $1,749.94 -
Blue Sea Systems Stud Mount Insulating Boots (2-Pack) - 4000
$9.05 -
Blue Sea Systems PowerPost Insulator - 4004
$6.83 -
Blue Sea Systems Dual Entry Cable Cap
$16.35 -
Blue Sea Systems Standard Cable Caps
$9.15 - $9.91 -
Blue Sea Systems Straight Terminal Cable Caps
$9.81 -
Xantrex DC Battery Cables and Fuse
$280.61 - $486.43