Pro peak constellation

[ady]

purchased a charger with no instructions from ebay, can sort of see how to work it, anyone know where i can get a set of instructions, bin searching on the net with no luck.

[woody]

Pro peak constellation

COPY & PASTE...
You need to select one of the memories (0-9) in order to set
the charging parameters manually. On the inital screen you will have
[A1] or [A2] in the corner, these are the automatic modes. Press Enter
and theyll flash. Then use the up and down arrows to select [Mx]
where x is the memory you want. Press Enter again and you should then
be able to use Setup to set chemistry, cells and capacity

[ady]

Pro peak constellation

Thanks woody, i can see the automatic and manual modes, and can work out how to set my type of batteries. i have a couple of questions though. my batteries are brand new 8.4v nimh 3300mah, 7 cell, and i want to prolong the life and get maximum performance from them.

1. i was planning to discharge them when they arrive in the post and do this every 2 weeks, should i just use the automatic setting for this?
2. also i was going to trickle charge them before an event how do i set it to trickle charge,and what amps?
3. and finally! at events i wanted to top them up inbetween fights, should i just use the automatic setting for this?

thanks for any help.

[grant_ploughbot]

Pro peak constellation

I would charge them at around 300mA and then discharge them and do it again at the same rate when you first get them. For before an event, I would also charge them at around 300mA (this will be as good a trickle charging).
I between fights at an event i would charge at 3300mA, maybe 3500mA if your in a rush.

[ady]

Pro peak constellation

cheers Guys, i think im getting it now, when im charging i press down till its at 0.3 to trickle charge? and to fast charge i press up when its charging and take this upto 3.5? but discharging is ok to just do on automatic setting?

looking forward to prodigys next event. yours of course!

(Message edited by ady on July 07, 2007)

[grant_ploughbot]

Pro peak constellation

yep, thats right. you can preset the two different charge rates in two seperate memories, but i found it easier to do as you described above.

[antrock101]

Pro peak constellation

anyone used the ones without lcd screens?

[ady]

Pro peak constellation

what should i discharge them to (in volts?

[ady]

Pro peak constellation

and another question!! im currently charging some 7.2v packs to test it out, i have set the battery type, cell number, and mah, its currently at 8.8v and still climbing, is this right for a 7.2v pack

[killercarrot]

Pro peak constellation

yep
thats fine.. the nominal voltage per cell of a standard NiMH cell is about 1.2 volts, but when fully charged itll be higher around 1.5v.. so a fully charged 7.2 pack made of 6 cells will be just under 9v..(for a while, but will drop back off once you turn the charger off)

(Message edited by killercarrot on July 08, 2007)

[ady]

Pro peak constellation

sorry people, still have problems. i am now discharging and charging my new 8.4v 7 cell 3300mah packs. i discharged them which took 20 mins, at 0.3 discharge, and voltage ended at 6volts when finished. then i charged it at 0.3volts as i wanted to trickle charge them. After 5 minutes i get a warning saying output voltage too low, all im trying to do is learn how to discharge and charge them on trickle to cycle them before my next event. once problem is sorted how long should a trickle charge take?, sorry but i have no instrutions for this charger.

[stu]

Pro peak constellation

Have you programnd the charger that its charging/discahring a 7 cell pack (8.4v pack) ?

As if its trying to charge the pack and its saying output voltage too low, means it maybe set to cahrge a differen type of pack.

Mr Stu

[ady]

Pro peak constellation

i have set it to a 7 cell pack,nimh and 3300mah, but couldnt see where to set pack voltage.

[woody]

Pro peak constellation

Picking the number of cells and battery type gives the machine the information required to allow it to pick the correct voltage.

Im assuming a typo 0.3 Amps NOT 0.3 volts.

6 volts is very low ..the recommended lower limit is ......I think ... 1 volt per cell.

You could try calling it a 6 cell pack till the battery revives a bit ( this should top it up to 7.2volts )....then reprogramme to 7 cells.

New thought ....whats your power supply?
I think Ive had that error when the power supply cant provide enough OOoomph!

(Message edited by woody on July 11, 2007)

[ady]

Pro peak constellation

the power supply is a propeak 13.8v 20a dual output, from technobots. yes a typo should be 0.3 amps. when a 8.4v battery is fully charged should it be around 10 volts?