Battery Harnesses | McMaster-Carr

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60 Products

Battery Power Cords

Connect batteries to each other.

Terminal Clamp × Lug

Terminal Clamp × Lug and Lug with Terminal × Lug cords also connect batteries to electrical systems.

				Cord
AWG	Lg.	Lug ID	End Shape	OD	Insulation Material	Connection Material	Temp. Range, ° F	Choose a Color (Polarity)		Each
4	10"	3/8"	Straight	0.35"	PVC	Tin-Plated Copper	-40 to 220	Black (Negative) , Red (Positive)	69735K51	000000
4	20"	3/8"	Straight	0.35"	PVC	Tin-Plated Copper	-40 to 220	Black (Negative) , Red (Positive)	69735K52	00000
4	30"	3/8"	Straight	0.35"	PVC	Tin-Plated Copper	-40 to 220	Black (Negative) , Red (Positive)	69735K53	00000
4	60"	3/8"	Straight	0.35"	PVC	Tin-Plated Copper	-40 to 220	Black (Negative) , Red (Positive)	69735K54	00000
1	10"	3/8"	Straight	0.49"	PVC	Tin-Plated Copper	-40 to 220	Black (Negative) , Red (Positive)	69735K41	00000
1	20"	3/8"	Straight	0.49"	PVC	Tin-Plated Copper	-40 to 220	Black (Negative) , Red (Positive)	69735K42	00000
1	30"	3/8"	Straight	0.49"	PVC	Tin-Plated Copper	-40 to 220	Black (Negative) , Red (Positive)	69735K43	00000
1	60"	3/8"	Straight	0.49"	PVC	Tin-Plated Copper	-40 to 220	Black (Negative) , Red (Positive)	69735K44	00000
2/0	10"	3/8"	Straight	0.61"	PVC	Tin-Plated Copper	-40 to 220	Black (Negative) , Red (Positive)	69735K71	00000
2/0	20"	3/8"	Straight	0.61"	PVC	Tin-Plated Copper	-40 to 220	Black (Negative) , Red (Positive)	69735K73	00000
2/0	30"	3/8"	Straight	0.61"	PVC	Tin-Plated Copper	-40 to 220	Black (Negative) , Red (Positive)	69735K75	00000
2/0	60"	3/8"	Straight	0.61"	PVC	Tin-Plated Copper	-40 to 220	Black (Negative) , Red (Positive)	69735K77	00000

Terminal Clamp × Clamp with Post Terminal

Cords with post terminals or threaded stud terminals connect two or three batteries in parallel for maximum starting power. Connect the positive terminals together and the negative terminals together to get the combined capacity (in amp-hours) of the batteries—battery voltage remains the same.

			Cord
AWG	Lg.	End Shape	OD	Insulation Material	Connection Material	Temp. Range, ° F	Choose a Color (Polarity)		Each
2/0	6 13/16"	90° Elbow	0.61"	PVC	Lead	-40 to 220	Black (Negative) , Red (Positive)	7749K1	000000
2/0	7 3/8"	90° Elbow	0.61"	PVC	Lead	-40 to 220	Black (Negative) , Red (Positive)	7749K2	00000
2/0	14"	90° Elbow	0.61"	PVC	Lead	-40 to 220	Black (Negative) , Red (Positive)	7749K3	00000

Terminal Clamp × Clamp with Post Terminal × Terminal Clamp

			Cord
AWG	Lg.	End Shape	OD	Insulation Material	Connection Material	Temp. Range, ° F	Choose a Color (Polarity)		Each
2/0	14 3/4"	90° Elbow	0.61"	PVC	Lead	-40 to 220	Black (Negative) , Red (Positive)	7749K12	000000

Lug with Terminal × Lug

Terminal Clamp × Lug and Lug with Terminal × Lug cords also connect batteries to electrical systems.

				Cord
AWG	Lg.	Lug ID	End Shape	OD	Insulation Material	Connection Material	Temp. Range, ° F	Choose a Color (Polarity)		Each
4	10"	3/8"	Straight	0.35"	PVC	Tin-Plated Copper	-40 to 220	Black (Negative) , Red (Positive)	69735K21	000000
4	20"	3/8"	Straight	0.35"	PVC	Tin-Plated Copper	-40 to 220	Black (Negative) , Red (Positive)	69735K22	00000
4	30"	3/8"	Straight	0.35"	PVC	Tin-Plated Copper	-40 to 220	Black (Negative) , Red (Positive)	69735K23	00000
4	60"	3/8"	Straight	0.35"	PVC	Tin-Plated Copper	-40 to 220	Black (Negative) , Red (Positive)	69735K24	00000
1	10"	3/8"	Straight	0.49"	PVC	Tin-Plated Copper	-40 to 220	Black (Negative) , Red (Positive)	69735K26	00000
1	20"	3/8"	Straight	0.49"	PVC	Tin-Plated Copper	-40 to 220	Black (Negative) , Red (Positive)	69735K27	00000
1	30"	3/8"	Straight	0.49"	PVC	Tin-Plated Copper	-40 to 220	Black (Negative) , Red (Positive)	69735K28	00000
1	60"	3/8"	Straight	0.49"	PVC	Tin-Plated Copper	-40 to 220	Black (Negative) , Red (Positive)	69735K29	00000
2/0	10"	3/8"	Straight	0.61"	PVC	Tin-Plated Copper	-40 to 220	Black (Negative) , Red (Positive)	69735K31	00000
2/0	20"	3/8"	Straight	0.61"	PVC	Tin-Plated Copper	-40 to 220	Black (Negative) , Red (Positive)	69735K32	00000
2/0	30"	3/8"	Straight	0.61"	PVC	Tin-Plated Copper	-40 to 220	Black (Negative) , Red (Positive)	69735K33	00000
2/0	60"	3/8"	Straight	0.61"	PVC	Tin-Plated Copper	-40 to 220	Black (Negative) , Red (Positive)	69735K34	00000

Lug with Terminal × Lug with Threaded Stud Terminal

					Cord
AWG	Lg.	Lug ID	Stud Thread Size	End Shape	OD	Insulation Material	Connection Material	Temp. Range, ° F	Choose a Color (Polarity)		Each
2/0	7 3/8"	3/8"	3/8"-16	90° Elbow	0.61"	PVC	Lead	-40 to 220	Black (Negative) , Red (Positive)	7749K8	000000
2/0	14"	3/8"	3/8"-16	90° Elbow	0.61"	PVC	Lead	-40 to 220	Black (Negative) , Red (Positive)	7749K9	00000

Lug with Terminal × Lug with Threaded Stud Terminal × Lug

					Cord
AWG	Lg.	Lug ID	Stud Thread Size	End Shape	OD	Insulation Material	Connection Material	Temp. Range, ° F	Choose a Color (Polarity)		Each
2/0	14 3/4"	3/8"	3/8"-16	90° Elbow	0.61"	PVC	Lead	-40 to 220	Black (Negative) , Red (Positive)	7749K16	000000

Battery Holders


Single Battery Layout	End-to-End Battery Layout	Side-by-Side Battery Layout	I-Shaped with Single Battery Layout	Tee-Shape with Single Battery Layout

				Wire Connection								Mounting Holes
	For No. of Batteries	Battery Contact Type	Material	No. of Wire Leads	Connection Type	Wire Lead Lg.	Wire Lead AWG	Contact Material	Lg.	Wd.	Ht.	No. of	Dia.	Mounting Fasteners Included		Each
For AA Batteries







				Single Battery Layout

				1	Spring	Polypropylene	2	Wire Leads	6"	26	Steel	2.35"	0.63"	0.54"	2	0.1"	No	7712K11	00000




						End-to-End Battery Layout

						2	Spring	Polypropylene	2	Wire Leads	6"	26	Steel	4.24"	0.64"	0.54"	4	0.1"	No	7712K15	0000




								Side-by-Side Battery Layout

								2	Spring	Polypropylene	2	Wire Leads	6"	26	Steel	2.28"	1.2"	0.59"	2	0.1"	No	7712K12	0000


								3	Spring	Polypropylene	2	Wire Leads	6"	26	Steel	2.26"	1.93"	0.65"	2	0.12"	No	7712K13	0000
								4	Spring	Polypropylene	2	Wire Leads	6"	26	Steel	2.236"	2.41"	0.61"	2	0.115"	No	7712K14	0000


								For AAA Batteries







												Single Battery Layout

												1	Spring	Polypropylene	2	Wire Leads	6"	26	Steel	1.99"	0.52"	0.44"	1	0.08"	No	7712K16	0000




														Side-by-Side Battery Layout

														2	Spring	Polypropylene	2	Wire Leads	6"	26	Steel	2.02"	0.96"	0.5"	2	0.1"	No	7712K17	0000


														3	Spring	Polypropylene	2	Wire Leads	6"	26	Steel	2.02"	1.5"	0.53"	2	0.12"	No	7712K18	0000
														4	Spring	Polypropylene	2	Wire Leads	6"	26	Steel	1.99"	1.87"	0.48"	2	0.11"	No	7712K19	0000


														For C Batteries







																		Single Battery Layout

1																		Spring	Polypropylene	2	Wire Leads	6"	26	Steel	2.41"	1.16"	0.99"	4	0.08"	No	7712K92	0000




		End-to-End Battery Layout

		3	Spring															Polypropylene	2	Wire Leads	6"	26	Steel	6.28"	1.16"	0.98"	4	0.11"	No	7712K94	0000




																		Side-by-Side Battery Layout

				2	Spring													Polypropylene	2	Wire Leads	6"	26	Steel	2.397"	2.19"	0.945"	4	0.157"	No	7712K93	0000


				4	Spring													Polypropylene	2	Wire Leads	6"	26	Steel	2.291"	4.17"	0.885"	6	0.15"	No	7712K95	0000


				For D Batteries







																		Single Battery Layout

																		1	Spring	Polypropylene	2	Wire Leads	6"	26	Steel	2.72"	1.42"	1.07"	4	0.138"	No	7712K21	0000




																		End-to-End Battery Layout

																		3	Spring	Polypropylene	2	Wire Leads	6"	26	Steel	7.51"	1.43"	1.08"	4	0.14"	No	7712K26	0000




																		Side-by-Side Battery Layout

																		2	Spring	Polypropylene	2	Wire Leads	6"	26	Steel	2.77"	2.78"	1.2"	2	0.12"	No	7712K27	0000


												3	Spring					Polypropylene	2	Wire Leads	6"	26	Steel	2.77"	4.19"	1.14"	4	0.17"	No	7712K23	0000
												4	Spring					Polypropylene	2	Wire Leads	6"	26	Steel	2.83"	5.4"	1.12"	4	0.15"	No	7712K24	0000


												For N Batteries







															Single Battery Layout

															1				Spring	Polypropylene	2	Wire Leads	6"	26	Brass	1.45"	0.56"	0.54"	2	0.1"	No	7712K91	0000


															For 9V Batteries







																	I-Shaped with Single Battery Layout

		1															Snap		Plastic-Coated Fiberboard	2	Wire Leads	6"	24	Brass	1.14"	0.54"	0.235"	—	—	—	7712K513	0000


		1	Snap														Plastic-Coated Fiberboard		2	Wire Leads	12"	24	Brass	1.14"	0.54"	0.235"	—	—	—	7712K614	0000




																	Tee-Shape with Single Battery Layout

																	1		Snap	Plastic-Coated Fiberboard	2	Wire Leads	6"	24	Brass	1.04"	0.54"	0.235"	—	—	—	7712K511	0000


				1	Snap												Plastic-Coated Fiberboard		2	Wire Leads	12"	24	Brass	1.04"	0.54"	0.235"	—	—	—	7712K612	0000

Battery Holders for Large-Cell Batteries


For Flush Battery Covers	For Raised Battery Covers

Secure large-cell batteries to trays with these adjustable holders.

	For Battery
	Max. Ht.	Wd.	Dp.	Material	Includes		Each
For Flush Battery Covers



		8"	8 5/8" to 14 3/4"	8 5/8" to 14 3/4"	Fiberglass-Reinforced Polypropylene	Zinc-Plated Steel L-Bolts and Fasteners	7764K3	000000


		10"	8 5/8" to 14 3/4"	8 5/8" to 14 3/4"	Fiberglass-Reinforced Polypropylene	Zinc-Plated Steel L-Bolts and Fasteners	7764K6	00000


		For Raised Battery Covers



				8"	4" to 6 1/8"	4" to 6 1/8"	Fiberglass-Reinforced Polypropylene	Zinc-Plated Steel L-Bolts and Fasteners	7764K11	00000


				8"	5 1/2" to 9"	5 1/2" to 9"	Fiberglass-Reinforced Polypropylene	Zinc-Plated Steel L-Bolts and Fasteners	7764K8	00000
				10"	4" to 6 1/8"	4" to 6 1/8"	Fiberglass-Reinforced Polypropylene	Zinc-Plated Steel L-Bolts and Fasteners	7764K12	00000
				10"	5 1/2" to 9"	5 1/2" to 9"	Fiberglass-Reinforced Polypropylene	Zinc-Plated Steel L-Bolts and Fasteners	7764K9	00000