rechargeable AA batteries and charger

Started 8 months ago | Discussions
Arvind Balaraman Regular Member • Posts: 166
rechargeable AA batteries and charger

Looking to get some rechargeable AA batteries and charger for my transmitter. What is a good brand. I have been using eneloop till date and they dont seem to hold power for long

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Arvind Balaraman

Don89 Senior Member • Posts: 1,884
Re: rechargeable AA batteries and charger

Fujitsu batteries are made in Japan.   Reliable decent batteries.    Eneloop are China made these days

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Nikons, Rolleiflexes, Elinchroms

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rumple
rumple Senior Member • Posts: 1,683
Re: rechargeable AA batteries and charger
2

Arvind Balaraman wrote:

Looking to get some rechargeable AA batteries and charger for my transmitter. What is a good brand. I have been using eneloop till date and they dont seem to hold power for long

Charger:

Powerex MH-C980. Smart and fast.

Batteries:

Powerex Pro Rechargeable AA.  I have many of the predessor batteries from 2013, still working with almost their original capacity.

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Guillermo Shashte Senior Member • Posts: 1,011
Re: rechargeable AA batteries and charger

The best charger you can get for the price and features is the Opus BT-V3100

Review

More .. .

ebay

For Godox/Flashpoint use Alkaline instead.

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GS

S Castle
S Castle Senior Member • Posts: 1,219
Re: rechargeable AA batteries and charger
2

Guillermo Shashte wrote:

For Godox/Flashpoint use Alkaline instead.

I think this might be only to get more voltage. NiMh AA batteries' full-charge voltage is 1.2V while alkalines start at 1.5V (or maybe higher - I don't have one here to test).

My take is, if rechargeables work, use them.

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Shane

Guillermo Shashte Senior Member • Posts: 1,011
Re: rechargeable AA batteries and charger

scastle wrote:

My take is, if rechargeables work, use them.

https://www.youtube.com/watch?v=Q_tF9mdLIsA

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S Castle
S Castle Senior Member • Posts: 1,219
Re: rechargeable AA batteries and charger
1

Guillermo Shashte wrote:

scastle wrote:

My take is, if rechargeables work, use them.

https://www.youtube.com/watch?v=Q_tF9mdLIsA

"The trigger is designed for regular alkaline batteries." Well. That's a major design flaw, IMO.

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Shane

mek42 Regular Member • Posts: 174
Re: rechargeable AA batteries and charger

That is for the trigger (possibly also transceivers).  What about the speedlights themselves?

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Gato Amarillo Veteran Member • Posts: 7,678
Re: rechargeable AA batteries and charger

mek42 wrote:

That is for the trigger (possibly also transceivers). What about the speedlights themselves?

Speedlights do fine on rechargeables.

The info on alkaline applies to the trigger.

tugwilson Veteran Member • Posts: 3,255
Re: rechargeable AA batteries and charger

Arvind Balaraman wrote:

Looking to get some rechargeable AA batteries and charger for my transmitter. What is a good brand. I have been using eneloop till date and they dont seem to hold power for long

Triggers use very little power so they are often designed to use batteries that provide 1.5 volts rather than ~1.2 volts that a normal rechargeable battery delivers when fully charged. In doing so they will generally report that the battery needs replacing a long time before it actually does. So it's possible that your batteries are actually holding power it's just that the trigger is misreporting the amount of energy left.

Because triggers use very little power compared to speedlights it's very common to leave batteries in them for long periods of time. That means that there's a danger of a battery leak which can render the trigger useless. That's why I recommend you use non rechargeable lithium batteries like the Energiser. They will register correctly with the trigger, last a very long time and not leak.

GossCTP Veteran Member • Posts: 5,644
Re: rechargeable AA batteries and charger

tugwilson wrote:

Arvind Balaraman wrote:

Looking to get some rechargeable AA batteries and charger for my transmitter. What is a good brand. I have been using eneloop till date and they dont seem to hold power for long

Triggers use very little power so they are often designed to use batteries that provide 1.5 volts rather than ~1.2 volts that a normal rechargeable battery delivers when fully charged. In doing so they will generally report that the battery needs replacing a long time before it actually does. So it's possible that your batteries are actually holding power it's just that the trigger is misreporting the amount of energy left.

Most of the Pentax DSLRs that used AAs had this problem. The battery meter was basically a volt meter that relied on the linear voltage discharge of alkalines to display properly.

Because triggers use very little power compared to speedlights it's very common to leave batteries in them for long periods of time. That means that there's a danger of a battery leak which can render the trigger useless. That's why I recommend you use non rechargeable lithium batteries like the Energiser. They will register correctly with the trigger, last a very long time and not leak.

Never had a nickle based battery leak that I can recall. Had many alkaline batteries ruin devices. I'll take my chances on the rechargeables. The single use lithium batteries are too expensive for the benefit in this situation to me.

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