Float Chargers | McMaster-Carr

	Battery Chemistry Battery Chemistry

Nickel Cadmium (NiCad)

Nickel Metal Hydride (NiMH)

Wet-Cell Lead Acid

Dry-Cell AGM Lead Acid

Lithium Ion (Li-Ion)

	For Battery Size For Battery Size

AAA

	For Number of Batteries For Number of Batteries

	For Battery Voltage For Battery Voltage

	Battery Connection Type Battery Connection Type

	Clamp
	Sheathed Alligator Clip
	Ring Terminal
	12V Vehicle Plug
	Two-Pin SAE Connector
	North American Style Connector

	Charging Current Charging Current

	Large-Cell Charger Type Large-Cell Charger Type

Automatic

Manual

	DFARS (Defense Acquisition Regulations Supplement) DFARS (Defense Acquisition Regulations Supplement)

DFARS Specialty Metals
COTS-Exempt

	Battery Connection Cord Length Battery Connection Cord Length

	Width Width

	For Battery Capacity For Battery Capacity

	Height Height

	RoHS (Restriction of Hazardous Substances) RoHS (Restriction of Hazardous Substances)

RoHS Compliant

	REACH (Registration, Evaluation, Authorization and Restriction of Chemicals) REACH (Registration, Evaluation, Authorization and Restriction of Chemicals)

REACH Compliant

	Power Plug Type Power Plug Type

Two Prong

Three Prong

	Power Cord Length Power Cord Length

	Depth Depth

	Power Consumption Power Consumption

	For Battery Capacity Range For Battery Capacity Range

24amp-hrs.

44amp-hrs.

75amp-hrs.

	Cold Cranking Amps Cold Cranking Amps

	Starting Current Starting Current

125 A

130 A

	For Lithium Type For Lithium Type

Lithium Iron Phosphate
(LiFePO4)

Lithium Cobalt Oxide
(LiCoO2)

Lithium Nickel Manganese
Cobalt Oxide (LiNiMnCoO2 or
NMC)

	Output Wattage Output Wattage

2.4W

4.8W

14W

View catalog pages (5)

Forward

How can we improve?

37 Products

Battery Chargers

Chargers cannot be sold to Canada due to import regulations.

For Nickel Cadmium (NiCad) and Nickel Metal Hydride (NiMH) Batteries

Charger for NiCad and NiMH Batteries

For No. of Batteries
AA, AAA, C, D	9V	Charging Time, hrs.	Input Voltage	Plug Type	Cord Lg., ft.	Cannot Be Sold To		Each
4	1	2-10	120V AC	Two Prong	6	Canada	0000000	000000

Chargers for Large-Cell Batteries

After the battery is fully charged, these chargers continuously provide a low-level charge to maintain the battery without overcharging.

Style B have mounting holes to attach them directly to mobile equipment, such as lift tables and floor scrubbers—no need to lug your equipment to a charger to power it.

Chargers with reverse-polarity protection prevent sparks and short circuits if the connectors touch or if they're not connected properly to the battery.

Chargers that cannot be sold to the regions listed are restricted by local energy efficiency regulations or product labeling requirements.

Style A—For Dry-Cell AGM Lead Acid and Wet-Cell Lead Acid Batteries

Charge Status Indicator and Reverse-Polarity Protection
For Battery Voltage	For Battery Cap., amp-hrs.	Charging Current, A	Battery Connection Type (Cord Lg.)	Power Plug Type	Power Cord Lg., ft.	Input Voltage	Ht.	Wd.	Dp.	Cannot Be Sold To		Each
24	80-150	10	Clamp (8 ft.)	Three Prong	7	120V AC	6 1/2"	7"	8"	CA, OR	000000	0000000
24	150-350	25	Clamp (8 ft.)	Three Prong	7	120V AC	8 1/2"	10"	9 1/2"	CA	000000	000000

Style A—For Lithium Ion (Li-Ion), Dry-Cell AGM Lead Acid, and For Wet-Cell Lead Acid Batteries

Charge Status Indicator and Reverse-Polarity Protection
For Lithium Type	For Battery Voltage	For Battery Cap., amp-hrs.	Charging Current, A	Battery Connection Type (Cord Lg.)	Battery Connection Current	Power Plug Type	Power Cord Lg., ft.	Input Voltage	Ht.	Wd.	Dp.	Cannot Be Sold To		Each
Lithium Iron Phosphate (LiFePO4)	12/24	80-150	10	Clamp (8 ft.)	__	Three Prong	8	120V AC	6 1/2"	7"	8"	CA, OR	0000000	0000000
Lithium Iron Phosphate (LiFePO4)	12/24	150-350	25	Clamp (8 ft.)	__	Three Prong	8	120V AC	6 1/2"	7"	8"	CA	0000000	000000
Lithium Iron Phosphate (LiFePO4)	36	150-350	25	North American Style Connector (8 ft.)	175A	Three Prong	8	120V AC	8 1/2"	10"	9 1/2"	CA, OR	0000000	000000
Lithium Iron Phosphate (LiFePO4)	48	150-350	25	North American Style Connector (8 ft.)	175A	Three Prong	8	120V AC	8 1/2"	10"	9 1/2"	CA, OR	0000000	000000

Style B—For Lithium Ion (Li-Ion), Dry-Cell AGM Lead Acid, and For Wet-Cell Lead Acid Batteries

											Mounting Holes
For Lithium Type	For Battery Voltage	For Battery Cap., amp-hrs.	Charging Current, A	Battery Connection Type (Cord Lg.)	Power Plug Type	Power Cord Lg., ft.	Input Voltage	Ht.	Wd.	Dp.	No. of	Dia.	Mounting Fasteners Included	Cannot Be Sold To		Each
Charge Status Indicator and Reverse-Polarity Protection
Lithium Iron Phosphate (LiFePO4)	48	150-350	25	3/8" Ring Terminal (8 ft.)	Three Prong	8	120V AC	6"	9"	8"	4	3/8"	No	CA, OR	0000000	0000000

Style C—For Dry-Cell AGM Lead Acid and Wet-Cell Lead Acid Batteries

Charge Status Indicator and Reverse-Polarity Protection
For Battery Voltage	For Battery Cap., amp-hrs.	Charging Current, A	Battery Connection Type (Cord Lg.)	Power Plug Type	Power Cord Lg., ft.	Input Voltage	Ht.	Wd.	Dp.		Each
6/12	1.2-200	1.25	Clamp (18"), 5/16" ID Ring Terminal (18"), Two-Pin SAE Connector (6 ft.)	Two Prong	6	120V AC	2"	7"	3 3/4"	00000000	000000

Style D—For Dry-Cell AGM Lead Acid and Wet-Cell Lead Acid Batteries

Charge Status Indicator and Reverse-Polarity Protection
For Battery Voltage	For Battery Cap., amp-hrs.	Charging Current, A	Battery Connection Type (Cord Lg.)	Power Plug Type	Power Cord Lg., ft.	Input Voltage	Ht.	Wd.	Dp.		Each
6/12	12-68	2, 10	Clamp (7 ft.)	Two Prong	7	120V AC	7 3/4"	10 1/2"	3 3/4"	000000	000000
12	13-100	20	Clamp (6 ft.)	Three Prong	6	120V AC	11"	8"	6"	000000	000000

Style D—For Wet-Cell Lead Acid Batteries

Charge Status Indicator and Reverse-Polarity Protection
For Battery Voltage	For Battery Cap., amp-hrs.	Charging Current, A	Battery Connection Type (Cord Lg.)	Power Plug Type	Power Cord Lg., ft.	Input Voltage	Ht.	Wd.	Dp.		Each
6/12	12-59	3, 6	Clamp (7 ft.)	Two Prong	7	120V AC	7 3/8"	10 1/4"	3 1/4"	0000000	000000

Style E—For K2 Energy Lithium Ion (Li-Ion) Batteries

Charge Status Indicator
Charger No.	For Battery No.	For Lithium Type	For Battery Voltage	Charging Current, A	Battery Connection Type (Cord Lg.)	Power Plug Type	Power Cord Lg., ft.	Input Voltage	Ht.	Wd.	Dp.	Cannot Be Sold To		Each
K2C12V4A03	K2B12V7EB, K2B12V10EB, K2B12V19EB, K2B12VG27-2, K2B12VG27-3, K2B12VU1-1	Lithium Iron Phosphate (LiFePO4)	12	4	Sheathed Alligator Clip (4 ft.)	Two Prong	4	120V AC	1 3/16"	5 1/2"	2 3/8"	CA	000000	000000
K2C24V2A03	K2B24V10EB	Lithium Iron Phosphate (LiFePO4)	24	2	Sheathed Alligator Clip (4 ft.)	Two Prong	4	120V AC	1 3/16"	5 1/2"	2 3/8"	CA	000000	00000

Water-Resistant Chargers for Large-Cell Batteries

Charge batteries even in wet environments—a sealed housing keeps water out. They have reverse-polarity protection to prevent sparks and short circuits if the ring terminals touch or if they're not connected properly to the battery. After the battery is fully charged, they continuously provide a low-level charge to maintain the battery without overcharging.

When used with lithium batteries, Style D chargers must match the battery’s lithium type.

Chargers that cannot be sold to California and Oregon are restricted by local energy efficiency regulations.

Style A—For Dry-Cell AGM Lead Acid and Wet-Cell Lead Acid Batteries

For Battery Voltage	For Battery Cap., amp-hrs.	Charging Current, A	Battery Connection Type (Cord Lg.)	Power Plug Type	Power Cord Lg., ft.	Input Voltage	Ht.	Wd.	Dp.	Mounting Hole Dia.	Mounting Fasteners Included		Each
12/24	5-100	2.5, 5	Two-Pin SAE Connector (4 ft.), 5/16" ID Ring Terminal (18")	Three Prong	6	120V AC	5 1/8"	8 7/8"	2"	3/8"	No	00000000	0000000

Style B—For Wet-Cell Lead Acid Batteries

										Mounting Holes
For Battery Voltage	For Battery Cap., amp-hrs.	Charging Current, A	Battery Connection Type (Cord Lg.)	Power Plug Type	Power Cord Lg., ft.	Input Voltage	Ht.	Wd.	Dp.	No. of	Dia.	Mounting Fasteners Included	Cannot Be Sold To		Each
12	150-350	25	3/8" ID Ring Terminal (6 ft.)	Three Prong	2	120V AC	6 1/2"	6"	9"	4	3/8"	No	CA, OR	0000000	0000000
24	150-350	25	3/8" ID Ring Terminal (6 ft.)	Three Prong	2	120V AC	6 1/2"	6"	9"	4	3/8"	No	CA	0000000	000000

Style C—For Wet-Cell Lead Acid Batteries

For Battery Voltage	For Battery Cap., amp-hrs.	Charging Current, A	Battery Connection Type (Cord Lg.)	Power Plug Type	Power Cord Lg., ft.	Input Voltage	Ht.	Wd.	Dp.		Each
12	72	6	Clamp (4 ft.)	Three Prong	6	120V AC	3 1/2"	5"	2 3/8"	0000000	0000000

Style D—For Lithium Ion (Li-Ion), Dry-Cell AGM Lead Acid, and Wet-Cell Lead Acid Batteries

											Mounting Holes
For Lithium Type	For Battery Voltage	For Battery Cap., amp-hrs.	Charging Current, A	Battery Connection Type (Cord Lg.)	Power Plug Type	Power Cord Lg., ft.	Input Voltage	Ht.	Wd.	Dp.	No. of	Dia.	Mounting Fasteners Included		Each
Lithium Cobalt Oxide (LiCoO2), Lithium Iron Phosphate (LiFePO4), Lithium Nickel Manganese Cobalt Oxide (LiNiMnCoO2 or NMC)	24	55-425	40	3/8" ID Ring Terminal (6 ft.)	Three Prong	6	120V AC	3 7/8"	8 1/2"	12"	4	5/16"	No	0000000	0000000
Lithium Cobalt Oxide (LiCoO2), Lithium Iron Phosphate (LiFePO4), Lithium Nickel Manganese Cobalt Oxide (LiNiMnCoO2 or NMC)	36	55-425	26	3/8" ID Ring Terminal (6 ft.)	Three Prong	6	120V AC	3 7/8"	8 1/2"	12"	4	5/16"	No	0000000	000000
Lithium Cobalt Oxide (LiCoO2), Lithium Iron Phosphate (LiFePO4), Lithium Nickel Manganese Cobalt Oxide (LiNiMnCoO2 or NMC)	48	55-425	20	3/8" ID Ring Terminal (6 ft.)	Three Prong	6	120V AC	3 7/8"	8 1/2"	12"	4	5/16"	No	0000000	000000

Hand-Held Charger/Starters for Large-Cell Batteries

Small enough to carry, these charger/starters provide a 125-amp starting current. They have reverse-polarity protection to prevent sparks and short circuits if the clamps touch or if they're not connected properly to the battery. After the battery is fully charged, they continuously provide a low-level charge to maintain the battery without overcharging.

For Dry-Cell AGM Lead Acid and Wet-Cell Lead Acid Batteries
For Battery Voltage	For Battery Cap., amp-hrs.	Charging Current, A	Starting Current, A	Battery Connection Type (Cord Lg.)	Features	Power Plug Type	Power Cord Lg., ft.	Input Voltage	Ht.	Wd.	Dp.		Each
6/12	12-150	6/15-40	125	Clamp (12 ft.)	Charge Status Indicator, Reverse-Polarity Protection	Two Prong	6	120V AC	13"	10 1/2"	11 5/8"	0000000	0000000

Charger/Starters for Large-Cell Batteries

Wheel these charger/starters to batteries that need maintenance. They provide higher starting currents than Hand-Held Charger/Starters for Large-Cell Batteries. All have reverse-polarity protection to prevent sparks and short circuits if the clamps touch or if they're not connected properly to the battery.

Automatic charger/starters turn off when the battery is fully charged, but will continue to monitor the battery and turn back on if voltage drops.

Automatic
For Battery Voltage	For Battery Cap., amp-hrs.	Charging Current, A	Starting Current, A	Battery Connection Type (Cord Lg.)	Features	Wheel Material	Power Plug Type	Power Cord Lg., ft.	Input Voltage	Ht.	Wd.	Dp.		Each
For Dry-Cell AGM Lead Acid and Wet-Cell Lead Acid Batteries
12	13-120	45	130	Clamp (6 ft.)	Power Supply, Ammeter, Reverse-Polarity Protection	Rubber	Three Prong	6	120V AC	33"	12"	12"	000000	0000000

Multiple-Battery Stationary Chargers for Large-Cell Batteries

Charge up to eight batteries at once. After the battery is fully charged, these chargers continuously provide a low-level charge to maintain the battery without overcharging.

For Dry-Cell AGM Lead Acid and Wet-Cell Lead Acid Batteries
For Battery Voltage	For No. of Batteries	For Battery Cap. Range, amp-hrs.	Charging Current, A	Battery Connection Type (Cord Lg.)	Features	Power Plug Type	Power Cord Lg., ft.	Input Voltage	Ht.	Wd.	Dp.		Each
6/12	8	24/44-75	2-12	Clamp (6 ft.)	Charge Status Indicator	Three Prong	9	120V AC	12 1/8"	19 1/8"	12"	0000000	0000000

Stationary Chargers for Large-Cell Batteries

Bring batteries to these chargers for maintenance. To prevent overcharging, they automatically shut off when battery is fully charged.

For Wet-Cell Lead Acid Batteries
For Battery Voltage	For Battery Cap., amp-hrs.	Charging Current, A	Battery Connection Type (Cord Lg.)	Features	Power Plug Type	Power Cord Lg., ft.	Input Voltage	Ht.	Wd.	Dp.		Each
12	240-300	30	175-amp North American Style Connector (8 ft.)	Charge Status Indicator, Ammeter	Three Prong	7	120V AC	12 3/16"	7 1/2"	5 1/2"	0000000	0000000
24	240-300	30	175-amp North American Style Connector (8 ft.)	Charge Status Indicator, Ammeter	Three Prong	7	120V AC	12 3/16"	7 1/2"	5 1/2"	0000000	000000
36	160-200	25	175-amp North American Style Connector (8 ft.)	Charge Status Indicator, Ammeter	Three Prong	7	120V AC	12 3/16"	7 1/2"	5 1/2"	0000000	000000

Solar Panel Chargers for Large-Cell Batteries

Rigid

Flexible

Keep batteries charged even when electricity is unavailable. These chargers can be used in any battery capacity range.

Automatic chargers continuously provide a low-level charge to maintain the battery without overcharging.

					Mounting Holes
For Battery Voltage	For Battery Cap., amp-hrs.	Charging Current, A	Output Wattage, W	Battery Connection Type (Cord Lg.)	No. of	Dia.	Mounting Fasteners Included	Includes	Backing Material	Ht.	Wd.	Dp.		Each
Rigid
Automatic Chargers for Dry-Cell AGM Lead Acid and Wet-Cell Lead Acid Batteries
12	__	0.2	2.4	Clamp (108"), 12V Vehicle Plug (108")	4	0.11"	Yes	__	__	19 3/8"	10 1/4"	1 3/8"	00000000	000000
12	__	0.4	4.8	Clamp (132"), 12V Vehicle Plug (132")	4	0.11"	Yes	__	__	17 1/4"	15"	2 3/4"	00000000	00000
Flexible
Manual Chargers for Dry-Cell AGM Lead Acid and Wet-Cell Lead Acid Batteries
12	2-50	0.45	7	5/16" ID Ring Terminal (15ft.), 3/8" ID Ring Terminal (15ft.)	4	3/8"	No	3-ft. Cord with 12V Vehicle Socket	Vinyl Plastic	23"	14 1/2"	3/64"	0000000	000000
12	5-100	0.9	14	5/16" ID Ring Terminal (15ft.), 3/8" ID Ring Terminal (15ft.)	4	3/8"	No	3-ft. Cord with 12V Vehicle Socket	Vinyl Plastic	42"	14 1/2"	3/64"	0000000	000000

5-ft. Power Cord with 12V Vehicle Plug for Flexible Chargers

0000000

Each

000000

Power Cords for Large-Cell Battery Solar Panel Chargers

Connect a flexible solar panel charger to a vehicle outlet to charge the vehicle’s battery.

Manufacturer	Manufacturer Model No.	Battery Connection Type	Battery Connection Cord Lg., ft.		Each
PowerFilm	RA-1	12V Vehicle Plug	5	0000000	000000

Hand-Held Starters for Large-Cell Batteries

Once fully charged, these starters store enough power to jump start a battery multiple times. All have reverse-polarity protection to prevent sparks and short circuits if the clamps touch or if they're not connected properly to a battery. They also have a USB port to charge mobile devices such as smartphones and tablets. To recharge, connect them to a USB port with the included cord.

Starters with a 12-volt vehicle plug can be charged in a vehicle outlet.

For 2,000A and 3,000A starters, use the adapter cord with the 12-volt vehicle socket to charge devices that require more power than what the USB cord delivers.

For Dry-Cell AGM Lead Acid and Wet-Cell Lead Acid Batteries
For Battery Voltage	Cold Cranking Amps	Battery Connection Type (Cord Lg.)	Includes	Features	Battery Chemistry	Ht.	Wd.	Dp.		Each
12	500	Clamp (2 ft.)	3-ft. USB Cord	Charge Status Indicator, Reverse-Polarity Protection	Lithium Ion (Li-Ion)	1 11/16"	7 11/16"	3 3/16"	0000000	000000
12	1,000	Clamp (2 ft.)	3-ft. USB Cord, 12V Vehicle Plug	Charge Status Indicator, Reverse-Polarity Protection	Lithium Ion (Li-Ion)	1 11/16"	7 11/16"	3 3/16"	0000000	000000
12	1,500	Clamp (2 ft.)	3-ft. USB Cord, 12V Vehicle Plug	Charge Status Indicator, Reverse-Polarity Protection	Lithium Ion (Li-Ion)	2"	8 5/8"	3 7/16"	0000000	000000
12	2,000	Clamp (2 ft.)	3-ft. USB Cord, 12V Vehicle Plug, 2-ft. Adapter Cord, 12V Vehicle Socket	Charge Status Indicator, Reverse-Polarity Protection	Lithium Ion (Li-Ion)	2 13/16"	8 13/16"	6"	0000000	000000
12	3,000	Clamp (2 ft.)	3-ft. USB Cord, 12V Vehicle Plug, 2-ft. Adapter Cord, 12V Vehicle Socket	Charge Status Indicator, Reverse-Polarity Protection	Lithium Ion (Li-Ion)	2 11/16"	12 3/8"	7 5/16"	0000000	000000