Generac 0A18010SRV Battery Charger Click to zoom

Generac 0A18010SRV Engine Battery Charger Assembly for Air-Cooled Standby Generators (12 V, Replaces 0A1801 / A1801)

MPN 0A18010SRV

In stockBattery Charger

Overview

The Generac 0A18010SRV is the genuine Generac engine battery charger assembly, the board-type charger that keeps a standby generator's 12-volt starting battery charged while the unit waits on standby. It replaces the older charger numbers 0A1801 and A1801 and is found mostly in Generac air-cooled standby generators with the tan, square-cornered enclosure, plus some older liquid-cooled units. A failed charger is a common reason a standby generator's battery keeps running down.

Key features

  • Genuine Generac assembly sold under Generac's own part number
  • Supersedes charger numbers 0A1801 and A1801 (board label reads 0A1801)
  • Maintains the 12 V engine starting battery while the generator is on standby
  • Can be checked for failure by measuring its input and output voltage

Fits

  • Generators: Generac air-cooled home standby generators (tan, square-corner enclosures) and some older liquid-cooled models whose parts list shows 0A18010SRV, 0A1801 or A1801; documented for Generac model 4390-0
  • Other brands: Generac-built units sold under names such as Guardian, Honeywell, Siemens, Carrier, Bryant, Eaton, Centurion and Watchdog usually take the same part
  • How to confirm fitment: find the model and serial number on the generator data label and look for 0A18010SRV, 0A1801 or A1801 in the parts manual, or match the number printed on your old charger board. Send us the details or call (218) 438-3644 and our team will confirm.

Specifications

Brand Generac
MPN 0A18010SRV
Also listed as Engine Battery Charger Assembly; ASY ENG BATT CHARGR
Replaces 0A1801, A1801
UPC Not published
Type Engine battery charger assembly
Battery served 12 V engine starting battery
Package dimensions 5 x 6 x 2 in
Shipping weight 1.1 lb
Condition New, genuine Generac

Frequently asked questions

Does 0A18010SRV replace 0A1801 and A1801?

Yes. 0A18010SRV is the Generac service number that replaces the older 0A1801 and A1801 chargers; the replacement board itself is labeled 0A1801.

How do I know if my Generac battery charger is bad?

The charger can be tested by measuring its input voltage and its output voltage. If it is receiving input power but not putting out charging voltage, it has likely failed. Have a qualified technician do electrical testing.

Why does my generator battery keep dying?

A failed charger is a common cause, but an old battery is too. Generac parts specialists recommend replacing standby generator batteries every 3 to 4 years as preventive maintenance.

Which generators use this charger?

It is used mainly in Generac air-cooled standby generators with the tan, square-cornered enclosure and in some older liquid-cooled models. Send us your model and serial number to confirm.

Is this a genuine Generac part?

Yes. It is the Generac assembly sold under Generac's part number 0A18010SRV, not an aftermarket copy.