Did I drain my aux battery too low?

Discussion in 'Gen 3 Prius Care, Maintenance & Troubleshooting' started by Jonny Zero, Nov 7, 2012.

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dhanson865 Expert and Devil's advocate

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May 24, 2011

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TN, USA

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2005 Prius

Jonny Zero said: ↑

The thing is that the battery did not "feel" low. Brake pump still pumped like normal, lights were not dimmed, when I pushed the button the first time the headlights came on normal because I was in the garage. It did not feel like a weak battery. It was just on the back of my mind that I probably ran it down the night before. This battery must be weak sauce.
Click to expand...

The Prius is like that, it's all or nothing, when the battery is low you may not notice any symptom and then when its just a little lower you'll notice all kinds of problems.

Find out what the actual voltage of the battery is and consider charging with a smart charger that desulfinates. I use the CTEK Multi US 3300 but there are others to choose from.

#21 dhanson865, Dec 29, 2012

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