NTN 1177A question

[irish medic]

Hi folks,

I'm sorry if this question has been asked & answered before. I currently have 2 NTN1177A chargers in use in a local voluntary ambulance company. We had a power failure recently which obviously resulted in the chargers powering off. When the power was restored, one charger is working fine, but the second battery bank is not functioning properly. Basically my problem is that on the first charging port all 3 led lights (green, yellow & red) are flashing on all at the same time, the other charging ports (2-6) have similar issues. Can anyone shed light on this as I have googled etc & can't find any answers.

[RadioSouth]

Pretty much sounds like a surge fried the chargers logic. The A version of those chargers are dated and use a problem prone Astec power supply so you were pretty much do replacement anyhow.

[Will]

Yup, the power supplies go bad in them. Replacement with a good quality power supply and wire it in. Duracomm comes to mind.

http://duracomm.com/siteresources/apps/ ... 5-spec.pdf