Wild Foamy

hi guys

im getting a new Battery pack for my 2nd hand tank after i found teh NiCd wasnt holding charge for more than a minute under use, so i was considering ordering a custom made NiMh pack but when i was asked if i wanted a charger i wasnt sure...


ive got a Yellow Nikko Charger:

AC-DC CHARGER
MODEL: BC-910E
INPUT: 230v - 50hz 6.0W
OUTPUT: 11.6v 180ma


and a Black Charger that came with my tank:

AC/DC ADAPTOR - CLASS 2 TRANSFORMER
INPUT: 220v - 50hz
OUTPUT: 12v 250Mah
MODEL: D41-12-250


And ive got the standard HPI charger that comes in the Mirage Starter kit used for rotostart batteries

theres not really much else i can think of, i dont know much about electrics beyond batteries and motors and i dont want to ruin a new battery pack

anyone know if i can use either of the above chargers??

feihu

You need to tell me what size battery you are planning to use. Number of cells and mah.

feihu

Wild Foamy

8 AA cells, 9.6v 1000-2000MaH

exeter_acres

My Feedback: (2)

Huh?

feihu

Both chargers will work for your batteries, but you will have to be careful not to overcharge which will distroy the battery when it gets HOT.

The equation for charge time is:

charge time in hrs = mah / ma

So, for your yellow Nikko charger that puts out 180ma, and for the 1000 mah battery
charge time is 1000/180 = 5.55hrs or 5hrs and 33 minutes.
And for the 2000 mah battery, charge time is 2000/180 = 11.1hrs or 11hrs and 6 minutes.

For the black charger that puts out 250ma, and the 1000 mah battery
charge time is 1000/250 = 4.0 hrs
And for the 2000 mah battery, charge time is 2000/250 = 8.0 hrs.

The above charge times are for a battery that was completely discharged. You need to check the battery during charge, and disconnect the battery when it gets lukewarm - and never let it get HOT!

The 11.6 or 12 volts are needed to charge 9.6volts.

Hope this clears up your question

feihu