Building my own 24V Battery Pack. Chargers?

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Leejin

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Joined 2012
I'm building a 24V battery pack from 16x Sanyo Eneloop Batteries in a 8x8 pack. It will fit in a modular battery pack that my speaker dock will attach to when I want to make it portable. What power is needed to charge them? What will I have to look for as far as numbers go?
 
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Leejin

Member
Joined 2012
simon7000 said:
You will need 20 cells to get 24 volts. You will need a charger designed for NiMH batteries. You really are better off using a group of cell holders and using a standard off the shelf charger!
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I totally forgot they were only 1.2V. So, I found a 10 x AA Cell holder to get the 12V. I'll use 2x of those.. Then By off the shelf charger, do you mean something like this?
 
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gmphadte

Member
Joined 2003
Yes if u want to charge it as 2 packs of 12 volts, othewise if u want to charge as a 24 volt single pack, buy a charger capable of charging 24 volts.

U have to set the charging current as specified on the battery and disconnect it after the period/time specified.

Gajanan Phadte
 
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Rundmaus

Rundmaus

Member
Joined 2005
Hey there,

if it doesn't need to be extremely portable, and very easy to charge, I would suggest using sealed lead acid (SLA) batteries. These come in multiples of 6V and are very easy to charge via a (possibly current-limited) constant voltage.

Using them as a symmetric preamplifier supply at work (physics lab) as well as for powering astronomic telescope equipment at home.

Best regards,
Andreas
 
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Leejin

Member
Joined 2012
Rundmaus said:
Hey there,

if it doesn't need to be extremely portable, and very easy to charge, I would suggest using sealed lead acid (SLA) batteries. These come in multiples of 6V and are very easy to charge via a (possibly current-limited) constant voltage.

Using them as a symmetric preamplifier supply at work (physics lab) as well as for powering astronomic telescope equipment at home.

Best regards,
Andreas
Click to expand...

I would LIKE it to be ultra portable.. But also, I want this thing to be ALAP (As Loud As Possible). I'm so torn between these 2 Amps. No idea which to choose..
 
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