Teething issues

[Danjr1]

Re: Teething issues

got my electronizes back today. sorted it all and it must be the motor. I can't see it being anything else. Ive swapped ESCs over, its got new radio gear and a receiver pack. Must say the electronize's servicing is brilliant. got them back with £20 out of my £40 back as well!

[Danjr1]

Re: Teething issues

all sorted! was a dodgy motor! whole thing works like a dream now so just gotta finish it up

[Danjr1]

Re: Teething issues

for what reason would a nimh battery pack not fully charge?! has been sitting completely discharged for a while. does it just need cycling?

[Anttazz]

Re: Teething issues

Probably, ive brought a few batteries back to life with a couple of cycle charger. Cant hurt to try anyway :-)

[Danjr1]

Re: Teething issues

It's strange. Was charging fine a couple of weeks ago. It goes up to 2300mah (out of 4300mah) then just stops?

[beast]

Re: Teething issues

discharge now then charge again

[Danjr1]

Re: Teething issues

trying that now. I'm thinking that i should drop the charging amperage to 1 amp rather than 1.5 amps?

[Danjr1]

Re: Teething issues

Weird question but if one of the battery wires got trapped and squashed whilst charging, would it have any effect?

[typhoon_driver]

Re: Teething issues

Yes, you will cause the internet to blow up

But seriously, it depends on which wire and whether the battery was shorted. If the battery still charges and discharges fine then chances are that it wouldn't have. If this is the case repair or replace the wire if required. O and learn from the mistake!

[Danjr1]

Re: Teething issues

Was the positive wire but the plastic coating and shrinking hadn't broke. It literally was trapped between the chassis and armour. I wasn't sure if that would account for the undercharging?

[Danjr1]

Re: Teething issues

It's charging and the mAH is going up but the voltage has gone done very very slightly?! It's a 24v nimh pack and it was at 28.43v but has dropped to 28.40v whilst charging.

Little update: its stopped charging again at 28.41v and won't go any further. It reach a peak of less than 1.5ah

[Danjr1]

Re: Teething issues

If one of the cells in the pack is fairly hot when all the others are cold, is that single cell upsetting the whole pack?

[Danjr1]

Re: Teething issues

It's now working perfectly!? God knows what happened, maybe it was having an off day

[Danjr1]

Re: Teething issues

Sorry to bother you all again but I want to double check. The pack was fully charged last night. Came home from work today and the motors were running very very slowly. The voltage was in the low 24v's. I'm guessing the battery is screwed then? It doesn't seem to want to hold the charge

[Bodge Job]

Re: Teething issues

I have had the same problem with my Rc car batteries, its probably a dodgy cell, so I would take out that cell, or teparelily isolate it from the pack, and see if it charges any better?? It worked for my batteries... But because of the missing cell it has a lower voltage, so if you want the voltage to be the same as the original, then you will have to buy another cell (of the same type as the others) and replace it completely...