My new Duracell Powersource 1800 fault light came on during the second "seasoning" discharge and I can't get it to go out so I can charge it again.

Possibly the manual online. Free manual.

http://www.xantrex.com/documents/Backup-Power/powersource-1800/XPower_Powersource_1800(975-0271-01-01_Rev-B).pdf

http://www.xantrex.com/documents/Backup-Power/powersource-1800/XPower_Powersource_1800(975-0271-01-01_Rev-B).pdf

the positive pin is the one to the right when looking at the power connector with the mobile 100 standing up correctly, the negative is the one at the far left. I made mine start charging this way: Still don't know what the middle pin is for. Just make your own cable out of an old car plug and possiblly a pc power source connector. it's not that difficult.

If it is new, you might need to open up the battery compartment and make sure there is not a removable protective covering on the battery leads. Otherwise it may be a defective battery. Many times the manufacturer will warranty it if you call them.

your battery isnt what was bad to begin with, if it is discharging either change, or have your alternator rebuilt.. thats your problem 100% sure

Hi.

If the red light is solid, that means that the Roomba is near to full discharge. If the light is flashing red, then the Roomba is completely out of charge.

If the Roomba is fully charged, then there may be a fault.

Here full list of light codes:

Pulsing Amber - Charging
Green - Fully Charged
Amber - Partially Discharged
Red - Almost Fully Discharged
Flashing Red - Fully Discharged"

Here manual

See also
Roomba DISCOVERY MODELS' DIAGNOSTIC TESTS

http://www.xantrex.com/web/id/2098/docserve.aspx

I’m happy to help further over the phone at https://www.6ya.com/expert/william_83fc156eee2b555e

NiMH tends to have a "memory". What this means is that the batteries will get used to being only charged and discharged a certain amount. What could be happening is that the battery THINKS it is charged when it is not... or.. it THINKS it is discharged when it is not. You can try to recondition them:

1. Charge them
2. reset the charger and charge again
3. put them in your device and drain them
4. let them sit, drain them again
5. recharge them
6. drain them again

Do this a few times. If you don't notice an improvement, you may want to consider getting a new set of batteries - I would recommend lithium rechargeables.

When the duracell lights blink during charging, AT YOUR OWN RISK, try a reverse charge. Instead charging positive to positive and negative to negative, try positive to negative and negative to positive. I did this for 2 minutes. This solved the problem. After the 2 minutes, I gave the batteries a normal charge. You will have to force the battery and charger contacts to touch.

I found with my Duracell crank lights they periodically need a good charge to function well. On the side there is a 5v charger socket - suggest and 8-10 hr charge. There is also a USB with a switch between IN and OUT. With a suitable USB cable in the IN position, the light can be connected to a computer to recharge. Hope this helps.