here is a pic showing voltage from the terminals on the charger as requested. also a pic of the battery terminals tested. the battery is showing >8v; does that mean it is charged? i know the robot complains when the voltage drops below 6.6v.

when i discovered the issue, it charged for at least 4 hours. i am worried that the charger will not shut off and possibly ruin the battery (or catch fire) if the charger is faulty.

rich

you have a point there not knowing iff its the batt or the charger. aldo the green led chouldn lid up when there's no batt connected. i do have some info about a bad batt.you can see on a charger iff the, batt is bad.the led on a charger goes out or blink red. so i gess we bolt earn 1.5 credit

all your robots

good find and good reason to by new one.

Looks to me that your charger is actually charging or at least outputting... Your battery is pretty much fully charged, by the way...

Balance charger voltage is correct and therefore will charge the battery. Battery voltage is OK, it's not fully charged (8.4v) but it's close. Which is good news.

You should never leave a LiPo battery unattended while it is charging. The balance charger charges at 1A, divide the battery capacity by the charge rate to find the time required to charge it. A 1600mAH battery charged at 1A would take 1.6 hours to charge.

I'm not sure, but believe that you cannot overcharge a LiPo since the charge voltage is the same as the battery voltage when fully charged. The voltage of the battery therefore cannot increase above the charge voltage. However, as I said I am not 100% sure of this. I will need to look it up (unless someone else chimes in). In the mean time, do timed charges based on the above calculation, check the voltage of the battery when you take it off charge and check it's 8.2-8.4v

okay, since the battery has been charged, does that mean that the charger is still charging it and that it won't overcharge the battery?

i don't know enough about electronics other than putting a voltage meter on batteries to see if they have a charge.

i am worried that it will ruin my battery or worse, cause a fire.

@Rich, sorry, didn't see your post until after I posted. I will try your recommendation.

Just to be clear, I should read 8.4v on a fully charged battery and that it should take ~1.6 hours to fully charge the battery. Is that from 0v on the battery or from the 6.6v?

Can I use the charging connector on the bottom of the robot to check the voltage or do I have to pull it out each time?

No no no no no. Never 0v on the battery! Never below 6v on the battery!

From around 6.6v however my example above is for a 1600mah battery. EZ-Robot batteries are 1300mAh. It will take about 1 hour 20 minutes to charge (give or take).

Yes you can measure the voltage on the connector. On the connector it's the outside 2 pins for total voltage.

One thing I just remembered though, on first charging Six with the EZ-Robot charger my green light never turned off. Turning the robot on while it was charging fixed this, it's been working fine since. No idea why, not really recommended but shouldn't do any damage if it's only powering it up then turning it off after a few seconds.

Is it possible that this indication occurs if the charger circuitry has detected operating temperatures inside the charger enclosure that are above factory specified levels?

Bob J