Group U1 Battery Dimensions
| Battery Design |
|---|
 |
| Dimensions and Sizes (Length x Width x Height) |
|---|
| 7.75'' x 5.1875'' x 7.3125'' Inches 197 x 132 x 186 Millimeters |
Group U1 Battery Post Terminals
| Post Terminal Types and Locations | Posts Used |
|---|---|
|
Type "X" or manufacturer's custom post design |
Group U1 Battery Voltage and Current Characteristics
| Volts | Cells | CCA Range |
|---|---|---|
| 12 | 6 | 105-540 |
Best Group U1 Batteries
List of recommended batteries
|
Good Choice
|
EverStart Lead Acid Lawn & Garden 230 CCA Battery, Group Size U1
|
Check Price |
|
Good Choice
|
EverStart Lawn and Garden 340 CCA Lead Acid Battery, Group Size U1
|
Check Price |
|
Good Choice
|
Chrome Battery 12V 35Ah Group U1 Deep Cycle Sealed Battery
|
Check Price |
|
Good Choice
|
Mighty Max ML-U1 12V 200CCA Battery for Craftsman 25780 Lawn Tractor and Mower
|
Check Price |
|
Good Choice
|
12V 35AH Group U1 Deep Cycle Sealed Battery
|
Check Price |
Group U1 Alternatives and Closest Battery Groups by Dimensions
Interchangeable Battery Groups for U1 Battery
These groups have the same dimensions and performance but can have different terminal post types, post locations, and polarity.
| Battery Group Number | Dimensions | Shape | Volts | Cells | Post Terminal Type |
|---|---|---|---|---|---|
| Group U1 Battery | 7.75'' x 5.1875'' x 7.3125'' in. 197 x 132 x 186 mm |
|
12 | 6 | "X" |
| Group U1R Battery | 7.75'' x 5.1875'' x 7.3125'' in. 197 x 132 x 186 mm Positive post on the Right |
|
12 | 6 | "X" |
Closest but not Identical Size Battery Groups
Battery groups in this section below are not identical to the group U1 battery, they can be a little bigger or smaller. Please pay attention to the post terminal types and their location
Closest Groups that Have Slightly Smaller Dimensions
Smaller batteries can have less capacity, performance, and power in comparison with U1 group.
| Battery Group Number | Dimensions | Shape | Volts | Cells | Post Terminal Type |
|---|---|---|---|---|---|
| Group U1 Battery | 7.75'' x 5.1875'' x 7.3125'' in. 197 x 132 x 186 mm |
|
12 | 6 | "X" |
| Group 151R Battery | 7.4375'' x 4.9375'' x 8.875'' in. 188 x 125 x 225 mm Positive post on the Right |
|
12 | 6 | "A" |
| Group U2 Battery | 6.3125'' x 5.1875'' x 7.125'' in. 160 x 132 x 181 mm |
|
12 | 6 | "A3", "X" |
| Group 400 Battery | 5.875'' x 3.4375'' x 5.625'' in. 150 x 88 x 143 mm |
|
12 | 6 | "AuxTerminal" |
| Group 401 Battery | 5.875'' x 3.4375'' x 5.125'' in. 150 x 88 x 130 mm |
|
12 | 6 | "AuxTerminal" |
Closest Large Dimensions
Bigger batteries can have more capacity and power compared to U1 batteries.
| Battery Group Number | Dimensions | Shape | Volts | Cells | Post Terminal Type |
|---|---|---|---|---|---|
| Group U1 Battery | 7.75'' x 5.1875'' x 7.3125'' in. 197 x 132 x 186 mm |
|
12 | 6 | "X" |
| Group 57 Battery | 8.0625'' x 7.1875'' x 6.9375'' in. 205 x 183 x 177 mm |
|
12 | 6 | "A" |
| Group 102R Battery | 8.125'' x 6.9375'' x 5.5'' in. 207 x 175 x 139 mm Positive post on the Right |
|
12 | 6 | "A" |
| Group 99 Battery | 8.125'' x 6.9375'' x 6.9375'' in. 207 x 175 x 175 mm |
|
12 | 6 | "A1" |
| Group 99R Battery | 8.125'' x 6.9375'' x 6.9375'' in. 207 x 175 x 175 mm Positive post on the Right |
|
12 | 6 | "A1" |
How to Get 24 Volts from 12V of a U1 Battery Group
If you need 24 Volts, you can connect two group U1 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 12V lead-acid battery is connected to another 12V lead-acid battery, you have 24V 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 U1 Batteries with a Parallel Connection
If you need to increase current capacity and reduce charging time, connect batteries in parallel. When group U1 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 12V lead-acid batteries with 60 Ah capacity and you connect them in parallel, you'll get 12 Volts with 120 Ah.
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Eric Strong works in the automotive repair industry more than 12 years. His work included repairing electrical systems in various vehicle systems. A hybrid electric car battery replacement experience expanded his understanding of automotive battery technology.
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