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View Full Version : Uni Battery vs Wall charger?


zer037
3rd August 2009, 01:53 AM
Hi guys, I i'm Uni user who own two batteries, both standard 1620 Dynapack batteries. One of them came with the device as I bought it used. One of them I bought I on ebay, both of show different kind of problems, first on dies when 38% battery left and second one shows bizarre power meter and dies with unknown indication of power left.

For both of these batteries, I charge them with a wall charger which originally for my HTC Hermes aka Cigular 8525. The output I read was 5V and I just found on the Uni batteries it says charging voltage limited under 4.2V

So I'm wondering could the wall charger being the reason for damaging my batteries as it charged them over a higher voltage so they act funny? If so where could I buy a Wall charger for HTC Uni?

Thanks guys~

vma
3rd August 2009, 06:14 PM
Hi,

The first battery shows the normal signs of an old Uni battery. The same happend to most people here.

The seocnd battery is a cheap copy, which does not implement the same functionality as the original one.

The charger will show a slightly higher voltage, when measured directly with a multimeter, because it is not providing any current. Normally the voltage will drop as soon as an appliance is connected to it.

So far, everything seems normal.

To get an idea: I bought two Universal standard batteries at eBay, with one month delay (I have two Universals). The first one is much better than the second one, because it will retain power on standby much longer and seems to have a bigger capacity.

Still, the second one features a more impressive label...

I bought them from different sellers: I had to buy a battery for a friend and thought I better use the free shipping. Now I know I should have bought the second battery from the first seller - never change a winning horse!

Cheers,
vma

orb3000
3rd August 2009, 09:16 PM
Also as Universal is an old device I´m not sure that bateries still being made to this date, so perhaps a "new" battery is not really new, as perhaps it is on storage from seller since long time. Just consider that

Dukenukem sold me the original Universal battery and he´s reliable seller