Pro peak constellation

[stu]

Pro peak constellation

Yes Adrian that sounds about right for a fully charged 8.4v paack. Though after a day or so it may settle down to about 9.5v but thats fine.

Weird as it sounds but if a battery pack is showing up its voltage when checked, its flat. LOL. So a 8.4v pack, if its showing 8.4v dead on or slightly under, then its flat or very near flat.

Mr Stu

[woody]

Pro peak constellation

I dunno then Adrian....you could try this.

http://www.batteryspace.com/prod-specs/RR.pdfhttp://www.batteryspace.com/prod-specs/RR.pdf

[ady]

Pro peak constellation

does anyone know how long it should take to charge the battery, it read 8.4v when i put it on charge at 2.0a, and in 11 mins it was charged to 10v and finished, seems a bit quick? i wondering if their are any other easier to use chargers out their as this thing seems to of been a waste of money.

[big_nipper]

Pro peak constellation

If the battery is flat (1V per cell) and you charge at the 1C rate (ie 3300mA for 3300mAh) then it will take ~1 hour + a bit for the efficency loss & some types of chargers turn off every minuite or so to check the battery voltage). If you want your batteries to last dont charge more than this. Trickle Charge is usually 1/10C (ie 330mA for 3300mAh) and can be left on perminantly but most recommend 14 hours). Chargers that display capacity while charging is only an estimate but is usually pritty good. To find out the true capacity you need to fully charge and then discharge to 1V per cell. Note battery capacity is usually measured at a 1/10C discharge rate (depends on manufacture) so discahring at 1C rate will reduce the capacity displayed on the charger but NiMh are quite good at that rate so wont affect them much, Pb ones are the worst.

In any case if you discharge at 1C and it takes less than 50 mins(1 hour for 3300mAh) something is wrong, at 1/10C it should not take less than 8 hours (10 hours for 3300mAh). If its not your battereis then its your charger but it sounds like one of them is wrong if the charger is setup correctly.

[ady]

Pro peak constellation

Will try again tonite, thanks mark