Head-Fi.org › Forums › Equipment Forums › Cables, Power, Tweaks, Speakers, Accessories (DBT-Free Forum) › 9v rechargeable batteries-how long to charge?
New Posts  All Forums:Forum Nav:

9v rechargeable batteries-how long to charge?

post #1 of 5
3/22/05 at 6:41pm
Thread Starter 
I got 4 rechargeable 9v batteries for my SR-71. They are the 250mAh IpowerUS. I have charged them only a couple of times but its takes too long to charge with the IpowerUS charger (approximately 6 hours). Is this because they are still on their first charges or should i expect same timings for the following charges as well? In the charger manual is mentioned that it should get faster but i dont trust it.

http://www.thomasdistributing.com/ip...le-battery.htm
Reply
post #2 of 5
3/23/05 at 3:57am
Thread Starter 
bump!

Noone that can help?What about all SR-71 users?
Reply
post #3 of 5
3/23/05 at 9:00am
PP3 batteries takes yonks to charge..because they're sealed cells must be charged at a lower rate.

Compare the charging output of AAA and PP3 on the charger itself, AAA have faster charging. I think my 280mah PP3's take something like 18 hours to charge (no shut-off timer like other calls)

Don't use "special" PP3's like those, but the normal 8.4 NIMH type.
Reply
post #4 of 5
3/23/05 at 12:43pm
That's the reason I got the Powerex instead:

http://www.thomasdistributing.com/mh-96v170.htm

2 hours re-charging time.
Reply
post #5 of 5
3/23/05 at 12:48pm
Sorry I didn't check your chargers capabilities. Give your batteries several charges/discharges, they should charge in 2 hours as advertised.
Reply
New Posts  All Forums:Forum Nav:
  Return Home
Head-Fi.org › Forums › Equipment Forums › Cables, Power, Tweaks, Speakers, Accessories (DBT-Free Forum) › 9v rechargeable batteries-how long to charge?