Battery Cable Flexible OFC Pure Copper UL MTW/THW/SGT SAE J1127 USA Made

This cable carries multiple ratings in one wire:UL MTW Machine Tool WireUL1426 BC5-W2 Boat Cable ABYC and USCG Approved for use on boatsUL THW Building Wire Meeting NEC Code for building wireUL AWM Styles 1232/1283/1337/10070 Rated 600VUL AWM Style 10269 Rated 1000VUL VW-1 Flame RatingRoHS CompliantSAE J1127 SGT Automotive Battery CablePVC Jacket is Very Resistant to Oil, Water, Acid, Gas, Tears and AbrasionsThe Jacket Insulation Meets UL VW1 Flame Resistance RatingAnnealed Pure Electrolytic Copper with Class K (Type III) Rope Lay for flexibilityFULL AWG Copper ContentMADE IN THE USA ABOUT THE WIRE USED: This multi-rated battery cable is specially designed to meet the demands of various environments while staying flexible. Full AWG sized OFC copper conductor made from pure annealed electrolytic copper, will you get maximum power. The PVC jacket compound is specially formulated to resist chemicals, water, abrasions, oil, sunlight and is rated water resistant 75C Wet and 105C Dry (BC5-W2). This cable is rated up to 1000 Volts as AWM 10269 and 600V as the other wire types. Suitable for use in automotive applications, solar battery bank wiring, power inverter battery cables, marine battery cables, NEC Code wiring situations and many other applications calling for a durable yet flexible battery cable. The battery cables meet the requirements of SAE J1127 Type SGT as well as UL1426 BC5-W2 making them ABYC and US Coast Guard approved for boat and marine use. BENEFITS OVER WELDING CABLE:Full AWG Size OFC Copper ConductorUL Listed – Quality Strictly ControlledSuperior Oil Resistance of PVC where EPDM on many welding cables is a poor insulator against oilSAE Rated for Automotive and Marine UsesUL Listed as water resistantMeets NEC Code requirements BENEFITS OVER CCA POWER WIRE:Our cable is Copper…REAL COPPER but watch out for other “CCA Cable” as CCA Means Copper Clad Aluminum so you’d be using Aluminum which is a poor conductor compared to this pure copper cable! You have to use larger sizes of aluminum CCA cable, approximately 2 sizes larger to get close to the same power delivery as real copper cable! If you care about maximum power use our cable! Specifications: Gauge Stranding Outside Diameter Weight per foot LBS 6 273 .315 in .111 4 429 .350 in .164 2 676 .419 in .241 1 845 .490 in .315 1/0 1066 .530 in .391 2/0 1339 .579 in .478 4/0 2109 .695 in .735 For use as battery cables:Table of Allowable Amperage for conductors 50V or less with 105C ratingGauge Amps Outside of Engine Space Amps Inside of Engine Space 6 120 102 4 160 136 2 210 178 1 245 208 1/0 285 242 2/0 330 280 4/0 445 378 *All wire and cable amperage ratings are governed by the installation and not by the wire itself! There are different codes and suggestions in different installation environments so be sure to look into any codes or regulations covering your specific installation to determine the correct amperage ratings. Suitable Uses:Automotive Battery CablesMarine / Boat Battery CablesSolar Battery Bank ArrayForklift Charging CablesPower Inverter CablesWelding Cable LeadsAmplifier Wiring…and many other uses

Spartan Power 2 AWG Battery Cables – Made in the USA! Terminated 5/16″ or 3/8″

Spartan Power 2 AWG Terminated Battery Cables – Made in the USA! Spartan Power 2 AWG Battery Cables Features: Spartan Power Made in the USA, 2 AWG Battery Cables come professionally pre-assembled with 5/16″ or 3/8″ ring terminals and are perfect for your RV & vehicle wiring applications, power inverters, grounding cables, golf cart wiring, and many other applications where pure copper is recommended. These cable sets come with Adhesive Lined Irradiated Polyolefin (PO) heat shrink, which is exceptionally resistant to water, fungus, and UV light. These quality cable sets are guaranteed by both Inverters R Us & Spartan Power to provide you with consistent, reliable current. Comes with Lifetime crimp warranty. Spartan Power 2 AWG Terminated Battery Cables Features: Made in the USA Polyvinyl-chloride (PVC) insulation 90°C MTW – UL & CSA 105°C Voltage rating: 600 volts VW-1 & moisture resistant ROHS Compliant UL 1232/1284/1338/10269 Approved Spartan Power Heat Shrink Features: Shrink ratio: Approximately 3 to 1 at +90°C Operational temp. range: -55°C to +135°C Dielectric strength: 500 V/mil (197 kV/cm) Volume resistivity: 1014 ohm-cm Tensile strength: 1500 psi (141 kg/cm2) Specifications: AMS-DTL-23053/5, CL 1 and CL 3; UL 224, VW-1; CSA 198, OFT Spartan Power 2 AWG battery cables are terminated in either 5/16″ or 3/8″ ring terminals. These battery cables are perfect for power inverters, golf carts, motorcycles, boats, RV’s, solar systems, cars, trucks. If you’ve spent a ton of money on your Battle Born, Lion or other LiFePO4 battery system, you should want the best battery cables you can buy. Each cable is made from 100% pure copper wire with 665 fine strands. In our opinion, Spartan Power makes the best battery cables on the market today. Come with a Lifetime Crimp Warranty from Spartan. Looking for other Spartan Power Battery Cables? 2 AWG 1/0 AWG

Spartan Power 1/0 0 AWG Battery Cables Made in the USA! Terminated 5/16″ or 3/8″

Spartan Power 1/0 or 0 AWG Terminated Battery Cables – Made in the USA! Spartan Power 1/0 or 0 AWG Battery Cables Features: Spartan Power Made in the USA, 1/0 or 0 AWG Battery Cables come professionally pre-assembled with 5/16″ or 3/8″ ring terminals and are perfect for your RV & vehicle wiring applications, power inverters, grounding cables, golf cart wiring, and many other applications where pure copper is recommended. These cable sets come with Adhesive Lined Irradiated Polyolefin (PO) heat shrink, which is exceptionally resistant to water, fungus, and UV light. These quality cable sets are guaranteed by both Inverters R Us & Spartan Power to provide you with consistent, reliable current. Comes with Lifetime crimp warranty. Spartan Power 1/0 or 0 AWG Terminated Battery Cables Features: Made in the USA1064 starnds of 100% pure copper wire Polyvinyl-chloride (PVC) insulation 90°C MTW – UL & CSA 105°C Voltage rating: 600 volts VW-1 & moisture resistant ROHS Compliant UL 1232/1284/1338/10269 Approved Spartan Power Heat Shrink Features: Shrink ratio: Approximately 3 to 1 at +90°C Operational temp. range: -55°C to +135°C Dielectric strength: 500 V/mil (197 kV/cm) Volume resistivity: 1014 ohm-cm Tensile strength: 1500 psi (141 kg/cm2) Specifications: AMS-DTL-23053/5, CL 1 and CL 3; UL 224, VW-1; CSA 198, OFT Spartan Power 1/0 or 0 AWG battery cables are terminated in either 5/16″ or 3/8″ ring terminals. These battery cables are perfect for power inverters, golf carts, motorcycles, boats, RV’s, solar systems, cars, trucks. If you’ve spent a ton of money on your Battle Born, Lion or other LiFePO4 battery system, you should want the best battery cables you can buy. Each cable is made from 100% pure copper wire with 1064 fine strands. In our opinion, Spartan Power makes the best battery cables on the market today. Come with a Lifetime Crimp Warranty from Spartan.

Battery Cable Negative 2 Gauge AWG Copper Custom – Car, Truck, RV, Boat, Solar

2 AWG 2 Gauge Negative Battery Cable Custom MadeCopper battery cable conductor and copper connectors!This custom made top post negative battery cable comes with a top quality copper top post negative connector which is tin plated to resist corrosion, double crimped onto the cable and then you choose the length of the cable as well as your choice of an optional ring terminal available in various sizes, on the opposite end.You choose your length, which is measured from hole center of one connector to the hole center of the connector on the other end. The options for length and connectors are located near purchase buttons. The optional lug choices for the opposite end are 5/16 (fits 5/16 bolt & M8) or 3/8 (fits 3/8 bolt & M10) with adhesive heat shrink tubing applied matching the wire color. The heat shrink has a meltable glue lining to help seal your cable from air and moisture. The copper connectors feature a tin electro-plating which is resistant to the types of corrosion you’ll typically see on bare copper terminals.If you need something special with regard to the length or lugs or heat shrink color which are outside the available options please send us a message and we may be able to help you out. ABOUT THE WIRE USED:This 2 AWG Gauge extreme battery cable is specially designed to meet the demands of various environments while staying extremely flexible. Full AWG sized copper conductor made from 99.9% pure annealed electrolytic copper, will you get maximum power. The insulation and jacket compounds are specially formulated to stay flexible even in cold weather and carry a -49C to 105C temperature rating. The jacket is resistant to chemicals, water, abrasions, oil, sunlight and has a color coded dual extrusion jacket with a white inner insulation which would show any damage to the outer cable more clearly. This cable is rated up to 600 Volts and is suitable for use in automotive applications, solar battery bank wiring, power inverter battery cables, marine battery cables and many other applications calling for a durable yet flexible battery cable. The battery cables meet the requirements of SAE J1127 and J378 making them ABYC and US Coast Guard approved for boat and marine use.BENEFITS OVER WELDING CABLE: Full AWG Size Copper Conductor TPE Jacket is Oil Resistant where EPDM on many welding cables is a poor insulator against oil SAE Rated for Automotive and Marine UsesBENEFITS OVER CCA POWER WIRE: Our cable is Copper…REAL COPPER but watch out for other “CCA Cable” as CCA Means Copper Clad Aluminum so you’d be using Aluminum which is a poor conductor compared to this pure copper cable! You have to use larger sizes of aluminum CCA cable, approximately 2 sizes larger to get close to the same power delivery as real copper cable! If you care about maximum power use our cable!The jacket on the cable reads as follows:BATTERYCABLESUSA.COM 2 AWG MARINE SAE J378/J1127 600V (-49C to 105C) MADE IN USABenefits: ABYC and USCG Approved for use on boats SAE J1127 Approved SAE J378 Approved TPE Jacket is Very Resistant to Oil, Water, Acid, Gas, Tears and Abrasions The Jacket Insulation Meets UL FT1 Flame Resistance Rating Annealed Electrolytic Copper with Class K (Type III) Rope Lay for flexibility FULL AWG Copper Content MADE IN THE USASpecifications: Conductor Size: 2 AWG Stranding: 665 strands of copper (30 AWG ea strand, rope lay Class K) Outside Diameter of stranding: 0.320 inches (nominal) Outside Diameter of finished cable: 0.510 inches (nominal) Amps: Rated to handle 210 amps continuous outside of engine space (178 amps continuous inside engine space) Weight: 0.302 lbs per foot Suitable Uses: Automotive Battery Cables Marine / Boat Battery Cables Solar Battery Bank Array Forklift Charging Cables Power Inverter Cables Welding Cable Leads Amplifier Wiring …and many other uses

Spartan Power 4 AWG Battery Cables – Made in the USA! Terminated 5/16″ or 3/8″

Spartan Power 4 AWG Terminated Battery Cables – Made in the USA! Spartan Power 4 AWG Battery Cables Features: Spartan Power Made in the USA, 4 AWG Battery Cables come professionally pre-assembled with 5/16″ or 3/8″ ring terminals and are perfect for your RV & vehicle wiring applications, power inverters, grounding cables, golf cart wiring, and many other applications where pure copper is recommended. These cable sets come with Adhesive Lined Irradiated Polyolefin (PO) heat shrink, which is exceptionally resistant to water, fungus, and UV light. These quality cable sets are guaranteed by both Inverters R Us & Spartan Power to provide you with consistent, reliable current. Comes with Lifetime crimp warranty. Spartan Power 4 AWG Terminated Battery Cables Features: HEAVY-DUTY AMERICAN DESIGN: Unlike all those cheaply-made battery cables, the Spartan Power Made in the USA 2 gauge battery cables are PVC insulated and professionally cut, crimped & heat shrunk in Reno, NV! FOR A LIFETIME OF SERVICE: Our 4 AWG battery cables are not only sturdy & flexible, but they also feature 665 strands of 100% pure copper cable and lugs pre-assembled on both ends. ONE SET OF BATTERY WIRES, UNLIMITED USES: Spartan Power positive and negative cables are ideal for car automotive, solar, marine, RV, motorcycle, tractors, golf carts or power inverter batteries. FIND A CUSTOM SOLUTION: Don’t need two cables? Need only a positive or ground wire? Find exactly what you need in our huge collection of premium quality automotive battery cables and accessories. LIFETIME CRIMP WARRANTY: We believe these are the best 4 AWG battery cables on the market today, if you ever experience a crimp failure, Spartan Power will gladly repair or replace your cables for free! Spartan Power 4 AWG Terminated Battery Cables Specs: Made in the USA Polyvinyl-chloride (PVC) insulation 90°C MTW – UL & CSA 105°C Voltage rating: 600 volts VW-1 & moisture resistant ROHS Compliant UL 1232/1284/1338/10269 Approved Spartan Power Heat Shrink Specs: Shrink ratio: Approximately 3 to 1 at +90°C Operational temp. range: -55°C to +135°C Dielectric strength: 500 V/mil (197 kV/cm) Volume resistivity: 1014 ohm-cm Tensile strength: 1500 psi (141 kg/cm2) Specifications: AMS-DTL-23053/5, CL 1 and CL 3; UL 224, VW-1; CSA 198, OFT Spartan Power 4 AWG battery cables are terminated in either 5/16″ or 3/8″ ring terminals. These battery cables are perfect for power inverters, golf carts, motorcycles, boats, RV’s, solar systems, cars, trucks. If you’ve spent a ton of money on your Battle Born, Victron, Lion or other LiFePO4 battery system, you should want the best battery cables you can buy. Each cable is made from 100% pure copper wire with 420 fine strands. In our opinion, Spartan Power makes the best battery cables on the market today. Come with a Lifetime Crimp Warranty from Spartan. Looking for other Spartan Power Battery Cables?2 AWG 1/0 AWG

Battery Cable 2/0 AWG Gauge Copper Custom Made Auto,Truck, SAE NEGATIVE

Automotive wireBattery CablesBuilding Wire/THHNSoow Portable CordSolar CablesToolsWelding CableVisit our StoreBattery Cable 2/0 AWG Gauge Copper Custom Made Auto,Truck, SAE NEGATIVE Battery Cable NEGATIVE 2/0 Gauge AWG Copper Custom – Car, Truck, RV,, Solar & Car AudioQTY: 1BUILT WITH A TOP POST CONNECTOR TO WHICH EVER LUG YOU NEED ON THE OTHER END.DUAL WALL 3:1 HEAT SHRINK USED ON THE ENDS TO SEAL THE TERMINAL CRIMP JOINT.EACH CABLE IS HYDRAULIC CRIMPED AT EACH END.CABLE LUGS ARE TINNED COPPER LUGS.MADE IN THE U.S.AFEATURES –Oil ResistantResistant to Flame – UL VW-1 flame test outlined in UL1581600v105c tempepdm jacketabrasion resistantnom od- .5641196 strands of 30 awg Bare copper.Power supply applications not exceeding 600 volts ACCopper meets SAE standardsSAE J1127MADE IN THE USASAE J1127 Standard • Requires a minimum amount of copper. • Higher tensile strength. • Passes the SAE flame test. • Passes exposure to oils and fluids including: Gasoline, Oil, Engine Coolant, Acid, Power Steering Fluid, Diesal, Transmission Fluid, and Ethanol. FEATURES BUILT IN THE U.S.A. CRIMPED WITH 8 TON FORCE Q.C BEFORE LEAVING THE WAREHOUSE. OTHER RELATED ITEMS WELDING CABLE 4/0 THUR 8 AWG CHOOSE FROM: RED,BLACK, GREEN, BLUE AND YELLOW CABLE LUGS PLATED AND UN-PLATED 8 AWG THUR 4/0 HEAT SHRINK TUBING 3:1 dual wall Glue PET BRAID LOOM 3/8, 1/2, 3/4SHIPPINGIn-stock items will usually ship same day.3 PMPAYMENTSRETURNS WE ACCEPT VISA, DISCOVER,MASTERCARD AND AMEX AND PAYPAL. After Receiving the item, Contact Seller Within: 30 DAYS Refund Will be Given As: MONEY BACK Return Shipping: Buyer Pays for Return Shipping 20% ReStocking FEE may Apply. CHECK OUT OUR OTHER ITEMS ​​​​​​​AUTOMOTIVE WIRE GXL, TXL 125 TEMP Battery Cables. Battery Relocation Wire kits Tinned Copper Flat Braid BATTERY BOAT CABLES CABLE LUGS GOLF CART BATTERY CABLES WINCH KIT CABLES GROUND STRAP CABLE WIRE BRAID LOOM WIRE FERRULE RING TERMINAL SOLAR PANEL CABLES SOOW PORTABLE ​​​​​​​TOOLS​​​​​​​ WELDING CABLE ​​​​​​​ ABOUT AC/DC WIRE AC/DC WIRE AND SUPPLY HAS A HUGE DISTRIBUTION OF WIRE AND CABLE ALONG WITH TOP BRANDS OF ELECTRICAL PARTS FROM MANUFACTURES FROM , MOLEX, AMP, TYCO, AMPHENOL, COLEMAN CABLE, DRAKA AND MANY OTHERS.AC/DC WIRE AND SUPPLYCONTACT US MANUFACTURING, DISTRIBUTION ,SALES 2707 PRODUCT DR ROCHESTER HILLS, MI 48309 EMAIL US THROUGH EBAYSee our other itemsBattery Cable NEGATIVE 2/0 Gauge AWG Copper Custom – Car, Truck, RV, Boat, Solar & Car Audio QTY: 1 BUILT WITH A TOP POST CONNECTOR TO WHICH EVER LUG YOU NEED ON THE OTHER END. DUAL WALL 3:1 HEAT SHRINK USED ON THE ENDS TO SEAL THE TERMINAL CRIMP JOINT. EACH CABLE IS HYDRAULIC CRIMPED AT EACH END. CABLE LUGS ARE TINNED COPPER LUGS USED FOR MARINE APPLICATIONS.. MADE IN THE U.S.A FEATURES – —Oil Resistant —Resistant to Flame – UL VW-1 flame test outlined in UL1581 —600v —105c temp —epdm jacket —abrasion resistant —nom od- .564 —1196 strands of 30 awg Bare copper. —Power supply applications not exceeding 600 volts AC —Copper meets SAE standards —SAE J1127 —MADE IN THE USA —SAE J1127 Standard • Requires a minimum amount of copper. • Higher tensile strength. • Passes the SAE flame test. • Passes exposure to oils and fluids including: Gasoline, Oil, Engine Coolant, Acid, Power Steering Fluid, Diesal, Transmission Fluid, and Ethanol. Automotive wireBattery Cable 2/0 AWG Gauge Copper Custom Made Auto,Truck, Marine SAE NEGATIVEWelding CableVisit our StoreSoow Portable CordSolar CablesToolsBattery CablesBuilding Wire/THHNIn-stock items will usually ship same day.3 PMRETURNSPAYMENTS After Receiving the item, Contact Seller Within: 30 DAYS Refund Will be Given As: MONEY BACK Return Shipping: Buyer Pays for Return Shipping 20% ReStocking FEE may Apply. WE ACCEPT VISA, DISCOVER,MASTERCARD AND AMEX AND PAYPAL. RING TERMINAL WIRE BRAID LOOMCHECK OUT OUR OTHER ITEMS WIRE FERRULE GROUND STRAP CABLE Battery Relocation Wire kits Tinned Copper Flat Braid ​​​​​​​AUTOMOTIVE WIRE GXL, TXL 125 TEMP BATTERY BOAT CABLES CABLE LUGS WINCH KIT CABLES SOLAR PANEL CABLES SOOW PORTABLE GOLF CART BATTERY CABLES Battery Cables. WELDING CABLE ​​​​​​​ ​​​​​​​TOOLS​​​​​​​ABOUT AC/DC WIRE See our other itemsCONTACT USAC/DC WIRE AND SUPPLY AC/DC WIRE AND SUPPLY HAS A HUGE DISTRIBUTION OF WIRE AND CABLE ALONG WITH TOP BRANDS OF ELECTRICAL PARTS FROM MANUFACTURES FROM , MOLEX, AMP, TYCO, AMPHENOL, COLEMAN CABLE, DRAKA AND MANY OTHERS. EMAIL US THROUGH EBAY Battery Cable NEGATIVE 2/0 Gauge AWG Copper Custom – Car, Truck, RV, Boat, Solar & Car AudioQTY: 1BUILT WITH A TOP POST CONNECTOR TO WHICH EVER LUG YOU NEED ON THE OTHER END.DUAL WALL 3:1 HEAT SHRINK USED ON THE ENDS TO SEAL THE TERMINAL CRIMP JOINT.EACH CABLE IS HYDRAULIC CRIMPED AT EACH END.CABLE LUGS ARE TINNED COPPER LUGS USED FOR MARINE APPLICATIONS..MADE IN THE U.S.AFEATURES –Oil ResistantResistant to Flame – UL VW-1 flame test outlined in UL1581600v105c tempepdm jacketabrasion resistantnom od- .5641196 strands of 30 awg Bare copper.Power supply applications not exceeding 600 volts ACCopper meets SAE standardsSAE J1127MADE IN THE USASAE J1127 Standard • Requires a minimum amount of copper. • Higher tensile strength. • Passes the SAE flame test. • Passes exposure to oils and fluids including: Gasoline, Oil, Engine Coolant, Acid, Power Steering Fluid, Diesal, Transmission Fluid, and Ethanol. MANUFACTURING, DISTRIBUTION ,SALES 2707 PRODUCT DR ROCHESTER HILLS, MI 48309FEATURES BUILT IN THE U.S.A. CRIMPED WITH 8 TON FORCE Q.C BEFORE LEAVING THE WAREHOUSE. OTHER RELATED ITEMS HEAT SHRINK TUBING 3:1 dual wall Glue PET BRAID LOOM 3/8, 1/2, 3/4 WELDING CABLE 4/0 THUR 8 AWG CHOOSE FROM: RED,BLACK, GREEN, BLUE AND YELLOWSHIPPING CABLE LUGS PLATED AND UN-PLATED 8 AWG THUR 4/0 Battery Cable NEGATIVE 2/0 Gauge AWG Copper Custom – Car, Truck, RV, Boat, Solar & Car AudioQTY: 1BUILT WITH A TOP POST CONNECTOR TO WHICH EVER LUG YOU NEED ON THE OTHER END.DUAL WALL 3:1 HEAT SHRINK USED ON THE ENDS TO SEAL THE TERMINAL CRIMP JOINT.EACH CABLE IS HYDRAULIC CRIMPED AT EACH END.CABLE LUGS ARE TINNED COPPER LUGS USED FOR MARINE APPLICATIONS..MADE IN THE U.S.AFEATURES –Oil ResistantResistant to Flame – UL VW-1 flame test outlined in UL1581600v105c tempepdm jacketabrasion resistantnom od- .5641196 strands of 30 awg Bare copper.Power supply applications not exceeding 600 volts ACCopper meets SAE standardsSAE J1127MADE IN THE USASAE J1127 Standard • Requires a minimum amount of copper. • Higher tensile strength. • Passes the SAE flame test. • Passes exposure to oils and fluids including: Gasoline, Oil, Engine Coolant, Acid, Power Steering Fluid, Diesal, Transmission Fluid, and Ethanol.

Battery Booster Jumper Cable Twin Wires Flexible Pure Copper 4 Gauge AWG Size

4 Gauge Pure Copper Booster / Jumper Cable Cable in BulkCut to length, you choose lengthPremium 100% Real CopperVery Flexible StrandingMeets SAE J1127 SpecificationsMADE IN USA !!!TPE Cable Insulation protects against grease, moisture, oil and abrasionColor Coded Positive and NegativeTangle Free twin wire construction, you can separate the cables to your own needsThese cables are Made in the USA of 100% copper with flexible stranding and a flexible, durable jacket material to ensure long life and reliability.Dimensions of the cable are about 15/16 of inch wide (just unde an inch) with both wires still together side by side and about 7/16 inch tall. Each 4 gauge wire is about 7/16 inch in outside diameter. You can see the measurements in the picture. Now, a little education on why our REAL COPPER cable is better than CCA (copper clad aluminum): It’s important to understand that our cables are REAL COPPER and they will handle more current (amps) than CCA (copper clad aluminum) cable in the same size. Many products on the market use CCA instead of real copper and most people just don’t know the difference so here you go:Our copper cable is rated to 100% conductivity vs 61% for Copper Clad Aluminum (CCA) meaning you need 2 sizes larger for a CCA cable than you would if you used real copper. Copper is flexible and doesn’t break easily but Copper Clad Aluminum (CCA) expands and contracts nearly 1/3 more than copper from heat. Add to that the fact that aluminum has around 37% of the tensile strength of copper and you have the potential for breaking strands and loosening connections…something you shouldn’t mess with in high amperage DC Voltage applications!Copper Clad Aluminum was designed for AC voltage use especially in high frequencies like those found in signalling and telecommunications as AC current travels on the outside of the conductor so aluminum inside and copper outside meant an overall lighter weight and lower cost wire…but there is not a single benefit in DC voltage! It’s a sad abuse by manufacturers to sell low quality cable dressed up as copper to unsuspecting buyers.So now you know why our REAL COPPER cables are superior! Share this info with family and friends and BE SAFE! Use REAL COPPER…like the soft annealed copper which makes up all of our durable and flexible multi-rated battery and welding cables.