How to Check/Refill the Battery Electrolyte in a Geo Metro
- 1). Park your Geo Metro and turn the engine off. Pull the hood release handle located inside the vehicle under the instrument panel. Push the hood latch located under the hood to open the hood.
- 2). Locate the battery. You'll find it on the driver's side.
- 3). Determine whether you have a maintenance-free battery or a low-maintenance battery. The maintenance-free battery is sealed, but the low-maintenance battery contains six individual cells with vent caps.
- 4). Use the hydrometer with its built-in eye to check the maintenance-free battery. A green eye typically means that the battery is properly charged with plenty of fluid, while a black eye means that the battery is low in charge and low in electrolyte fluid. A yellow eye means that the electrolyte and charge is low and you'll need to replace your maintenance-free battery.
- 5). Remove the vent caps to check the battery electrolyte levels on the low-maintenance battery. You'll find an indicator line on the side of each of the six cells, and you should check each one separately. If the fluid isn't up to the indicator line in a cell, add distilled water to it.
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