boxwave battery adapter

kaangun · 01-21-05, 07:23 AM

i have a boxwave battery adapter but it cant recharge my axim x50v with 4 2100mah batteries..
is this normal..
should i use only brand new alkaline batteries??

Gigi · 01-21-05, 07:30 AM

I don't have a Boxwave, but I have found that my battery adapter (from Ebay) won't charge after the battery gets to a certain level. How low is your battery when you try to charge?

Moved to Accessories.

**Frenchy** · 01-21-05, 07:44 AM

Originally Posted by Gigi

I don't have a Boxwave, but I have found that my battery adapter (from Ebay) won't charge after the battery gets to a certain level. How low is your battery when you try to charge?

Moved to Accessories.

This is correct, if the output is equal or less that the input needed the battery won't charge i.e.: output left 2.6v input is at 2.7v.

Gigi · 01-21-05, 07:48 AM

Thanks, Frenchy...I am not too learned on power issues.

kaangun · 01-21-05, 07:56 AM

Originally Posted by Gigi

I don't have a Boxwave, but I have found that my battery adapter (from Ebay) won't charge after the battery gets to a certain level. How low is your battery when you try to charge?

Moved to Accessories.

i try to charge axim just after fully charging my 4 2100mah batteries.. but still no chance..
so that might be right that 1.2V x 4 AA makes 4.8V and axim wants 5V i guess.. no just checked the orijinal adapter and it says 5.4V output..
but now another question comes to my mind, 4 AA alkalines will make 1.5V x 4 = 6Volts and thats bigger than 5.4V..
so what now? is it secure to use alkalines to use with battery adapter?

**Frenchy** · 01-21-05, 08:00 AM

Originally Posted by kaangun

i try to charge axim just after fully charging my 4 2100mah batteries.. but still no chance..
so that might be right that 1.2V x 4 AA makes 4.8V and axim wants 5V i guess.. no just checked the orijinal adapter and it says 5.4V output..
but now another question comes to my mind, 4 AA alkalines will make 1.5V x 4 = 6Volts and thats bigger than 5.4V..
so what now? is it secure to use alkalines to use with battery adapter?

I don't have an adapter like yours but I have seen others where the battery used for the charge is a 9V size battery. Your best bet would be to call the vendor and find out more about the dos and don'ts and specs of the charger.

*JakeRich* · 01-21-05, 08:32 AM

Originally Posted by kaangun

i try to charge axim just after fully charging my 4 2100mah batteries.. but still no chance..
so that might be right that 1.2V x 4 AA makes 4.8V and axim wants 5V i guess.. no just checked the orijinal adapter and it says 5.4V output..
but now another question comes to my mind, 4 AA alkalines will make 1.5V x 4 = 6Volts and thats bigger than 5.4V..
so what now? is it secure to use alkalines to use with battery adapter?

I don't have the battery adapter you are talking about but the Ax won't charge at below 5v, and 6v is too high and the protection circuits kick in.

Gigi · 01-21-05, 08:43 AM

Originally Posted by kaangun

i try to charge axim just after fully charging my 4 2100mah batteries.. but still no chance..
so that might be right that 1.2V x 4 AA makes 4.8V and axim wants 5V i guess.. no just checked the orijinal adapter and it says 5.4V output..
but now another question comes to my mind, 4 AA alkalines will make 1.5V x 4 = 6Volts and thats bigger than 5.4V..
so what now? is it secure to use alkalines to use with battery adapter?

Actually, I meant that the battery charger won't work when the Axim battery gets below a certain level. Whether the battery charger is fully charged does not seem to make a difference to me.

kaangun · 01-21-05, 10:42 AM

ok, i see..

and i wrote to boxwave and they tell not to use rechargable batteries..
they tell me to use alkaline ones only..
that's the end of that story i guess..

axzilla · 01-21-05, 11:05 AM

rechargable batteries are lower voltage than nonrechargables i think they are 1.2 volts per cell so that only gives you 4.8 volts total for 4. nonrechargeables are 1.5 volts per cell but only when they are still fairly unused alkaline batteries will take longer to drop lower than 1.5 volts than nonalkaline

swhoutx035 · 01-21-05, 08:20 PM

Originally Posted by axzilla

rechargable batteries are lower voltage than nonrechargables i think they are 1.2 volts per cell so that only gives you 4.8 volts total for 4. nonrechargeables are 1.5 volts per cell but only when they are still fairly unused alkaline batteries will take longer to drop lower than 1.5 volts than nonalkaline

The charger from Pocket PC Techs has a "voltage reduction circuit" that allows the use of Lithium, Alkaline, NiCd and NiMH batteries http://www.pocketpctechs.com/detail....=USB-BATADPT01

Lil Sync USB AA Battery Adapter with VRC

Description: Use with the Lil' Sync Retractable USB Sync-n-Charge cable to charge your unit using 4 AA batteries. One of the dangers in using 4 AA batteries with a 5V device is that different types of AA batteries give off different voltages. 4 Lithium AA batteries can give off almost 7 Volts which could damage some 5V systems. We've eliminated this danger by designing a Voltage Reduction Circuit (VRC) with a selectable switch. Select the type of battery your using and you're set. Once the Alk position no longer charges your unit, switch to the NiCd to drain the last usable portion of the batteries. You can use Lithium, Alkaline, NiCd and NiMH batteries with our adapter.
Price: $24.99
Sale Price: $19.99

PassaTed · 01-22-05, 02:30 PM

Using the boxwave adapter, I was able to charge my x50v using my (fully charged) 2200mAh batteries only if the x50v was off.

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