Generac A0010137452 Battery for Next Generation Standby Generators
A0010137452 is Generac's battery for its Next Generation air-cooled home standby generators (2025 and later): a 12-volt AGM PowerSport battery, Group 30L, 400 CCA minimum. Generac lists A0010137451 for the same position and sells the mounting tray separately as kit G00735230. The spec sheet for the 22–28 kW Next Generation units words the requirement as "12 volts, AGM Powersport Battery Group BTX30L 400CCA minimum" — BTX30L and Group 30L are the same battery. It does not fit a Guardian 10–26 kW: those take a Group 26R wet cell (0H3421S) or a Group 35 AGM.
Key facts
| Part numbers | A0010137452, A0010137451 |
| Tray kit | G00735230 |
| Type | AGM PowerSport, 12 V |
| Group | 30L (spec sheet: BTX30L) |
| Cold cranking amps | 400 CCA minimum |
| Fits | Generac Next Generation air-cooled home standby (2025+), 10, 14, 18, 22, 24, 26 and 28 kW — owner's manual A0004332577 Rev. C, pp. 14, 16 |
| Does not fit | Guardian 10–26 kW (Group 26R / Group 35 AGM), PowerPact 7.5 kW (Group U1) |
| Replace every | three to five years, or when a voltage test says so |
Is my generator a Next Generation unit?
Next Generation is Generac's 2025-and-later air-cooled line. The quickest check is the model number on the data label inside the lid; our maintenance kit page lists the Next Generation model numbers Generac publishes. If your unit is a Guardian 10–26 kW, this is the wrong battery — go to the Generac battery replacement guide for the Group 26R and Group 35 options.
A0010137452 or A0010137451?
Generac does not say what separates them. Every Generac document checked for this page lists the two numbers together, for the same battery and the same generators, with no difference in group, rating or model. Order whichever your dealer has; for a non-Generac equivalent, match 12 V AGM, Group BTX30L, 400 CCA minimum.
| Generac document | A0010137451 | A0010137452 | Listed for |
|---|---|---|---|
| Owner's manual A0004332577 Rev. C, pp. 14, 16 | Listed | Listed | 10, 14, 18, 22, 24, 26 and 28 kW Next Generation; "12 volts, AGM Powersport Battery Group BTX30L 400CCA minimum" |
| Spec sheet A0005151081 Rev. D, p. 7 | Listed | Listed | 10/14/18 kW Next Generation, "AGM Group BTX30L Battery" |
| Spec sheet A0005151077 Rev. D, p. 7 | Listed | Listed | 22–28 kW Next Generation, "AGM Group BTX30L Battery" |
| Support: What battery do I need… | Listed | Listed | "Next Generation air-cooled generators use an AGM PowerSports Battery, Group Size 30L, 400 CCA" |
| Support: What accessories are available… | Listed | Listed | All sizes; "Also Compatible with Guardian: No" |
One older document disagrees about the 14/18 kW units, which is worth knowing if you find it: revision B of the 14/18 kW spec sheet (07/11/2025) printed "AGM Powersport Battery Group BTX20L 310CCA minimum" with accessory A0006487350. Revision D of the same sheet (08/13/2026) and the owner's manual (Rev. C, 04/24/2026) list BTX30L, 400 CCA, A0010137451 / A0010137452, and this page follows the newer documents. The battery for every other Generac line, by kW, is in the Generac battery chart.
Do I need the tray kit G00735230?
Generac lists the tray kit G00735230 as a separate part next to the battery. Check whether your unit already has a tray fitted before ordering it.
How to tell the battery is actually the problem
Generac's own test is a meter reading at rest: 12.6 V or more is charged, under 12.4 V is discharged, and consistently under 12 V means replace. The charger is built into the generator — don't connect an external charger to a battery that's installed in it.
Replacing it on a Next Generation unit
Generac publishes a separate replacement procedure for Next Generation units. Like the Guardian procedure, it has you remove the 7.5 A fuse from the control panel before touching the battery and refit it at the end. Three details are specific to Next Generation:
- The battery charger's AC input is disconnected by unplugging J6, the 2-wire connector at the controller.
- Both terminals are tightened to 45–50 in-lbs (5–6 Nm), and the red cover goes back over the positive post.
- There is no full setup wizard when power comes back: pressing AUTO returns the unit to service.
The full Next Generation sequence, step by step, is in our battery replacement guide.
Parts and consumables
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