What is a Group 3EH Battery: Technical Information and Comparison with Alternatives

Group 3EH Battery Dimensions

Battery Design

Dimensions and Sizes (Length x Width x Height)
19.3125'' x 4.375'' x 9.8125'' Inches 491 x 111 x 249 Millimeters

Group 3EH Battery Post Terminals

Post Terminal Types and Locations	Posts Used
	Type "A" or manufacturer's custom post design

Group 3EH Battery Voltage and Current Characteristics

Volts	Cells	CCA Range
6	3	780-850

Group 3EH Alternatives and Closest Battery Groups by Dimensions

There are no direct interchangeable alternatives for group 3EH battery if we speak about dimensions, but if your battery space hasn't strict limits, you can choose a little bigger or smaller battery group. If your battery compartment cannot accommodate a larger battery, you can choose a smaller one. In both cases, you must securely fasten your new battery with a battery holder. If your battery holder can't hold the alternative battery group, you can buy a universal battery holder to fit in different types of batteries.

Closest but not Identical Size Battery Groups

Battery groups in this section below are not identical to the group 3EH battery, they can be a little bigger or smaller. Please pay attention to the post terminal types and their location

Closest Large Dimensions

Bigger batteries can have more capacity and power compared to 3EH batteries.

Battery Group Number	Dimensions	Shape	Volts	Cells	Post Terminal Type
Group 3EH Battery	19.3125'' x 4.375'' x 9.8125'' in. 491 x 111 x 249 mm		6	3	"A"
Group 4EH Battery	19.3125'' x 5'' x 9.8125'' in. 491 x 127 x 249 mm		6	3	"A"

How to Get 12 Volts from 6V of a 3EH Battery Group

If you need 12 Volts, you can connect two group 3EH batteries in series to double the voltage. The voltage of a series connection is equal to the sum of the voltages of all its batteries. If one 6V lead-acid battery is connected to another 6V lead-acid battery, you have 12V total power output. Each battery must be fully charged and completely isolated from the other before connecting them in series, or there will be damage to at least one of them.

Increasing a Capacity of 3EH Batteries with a Parallel Connection

If you need to increase current capacity and reduce charging time, connect batteries in parallel. When group 3EH batteries are in parallel, their voltage is equal to the voltage of one battery, while current capacity equals to the sum of all its battery capacities. If you have two 6V lead-acid batteries with 30 Ah capacity and you connect them in parallel, you'll get 6 Volts with 60 Ah.