Protected Li-ion D batteries - ?

[BenjiBot]

Hello, I'm looking for recommendations for good [rechargeable] li-ion protected D-cells and a suitable charger. I'm new to these size batteries and there don't seem too many options available - I get all of my R batteries from AW, but he doesn't seem to make them in the size I need. I'm reading some (fairly old) negative reports about Kaidomain D-cell reliability on CPF, could anyone share their recent experience or recommendations?

 

[Anders]

Hello

I bought a couple of D Li-Ion from Kaidomain.
Here is the results:

I haven't used this cells so much but they work for me, I use it in a light from Electrolumens.
Anders

 

[BenjiBot]

Thank you Anders. I've spent hours looking on the net for li-ion D cells and there's very little choice out there. Kaidomain are selling protected D cells so maybe I'll give them a go.

:thinking:

 

[Anders]

No problem BenjiBot.

I dont know your application, maybe this is an alternative:

http://www.hobbycity.com/hobbycity/store/uh_viewItem.asp?idProduct=6444

A123 Systems 26650A LiFePo4
less capacity but it can deliver much more A


Anders

 

[mudman cj]

Just watch out for their size. Those are some loooong D cells.

 

[BenjiBot]

Just watch out for their size. Those are some loooong D cells.

The Kaidomain li-ion? Do you think they will fit in a Mag if I cut the spring down a bit?

 

[Anders]

Kaidomains cell is 66 mm long and 32.60 mm wide.

Anders

 

[post tenebras]

Another alternative is HDS' Lithium Sulfur D-cells

http://ralights.com/?id=LithiumDSo2Battery

 

[BenjiBot]

66 mm long

Wow, that's nearly 1 CM longer than D batteries as I know them and so no use to me. Thanks for the tip

 

[BenjiBot]

Another alternative is HDS' Lithium Sulfur D-cells

http://ralights.com/?id=LithiumDSo2Battery

Thanks for this. I'm looking for 5000 mA, is the battery you link to suitable? Sorry, couldn't see it in the description

EDIT: I'm looking for rechargeable batteries, so not these ones

 

[glockboy]

They still on pre order.
http://www.cpfmarketplace.com/mp/showthread.php?t=200711

 

[BenjiBot]

Cheers. I'll keep an eye on that thread, I'd like to check it when they become available

 

[marschw]

Another alternative is HDS' Lithium Sulfur D-cells

http://ralights.com/?id=LithiumDSo2Battery

Li-SO2 isn't rechargable.

 

[roadie]

oh u may wish to see this ..... http://www.cpfmarketplace.com/mp/showthread.php?t=198506

scroll down on the first post , u shall see that XTAR D li-ion 32650 Battery

no data on this battery and the seller yet, but ..... jus take a look

 

[leukos]

I am very interested to see some test results from those XTAR D Li-ions whenever they become available.

 

[BenjiBot]

I am very interested to see some test results from those XTAR D Li-ions whenever they become available.

 

[KiwiMark]

could anyone share their recent experience or recommendations?

I have some Kaidomain protected D cells - they seem to work fine up to ~3 amps but the protection circuit cuts off around 3.5 amps. My cells work fine with ROP Low (3854L & 3853L) and are a bit finicky with 3853H. For my 3854H bulbs (which draw around 4.5A) I cannot get them to work at all from the protected D cells.

I also have some unprotected D cells (need to be more careful with these) and they work great with my 3854H bulb, very easily providing 4.5A with very little sag in the voltage.

The standard D cells are 32mm dia and 60mm long, the protected 32600 cells are 66mm long. In my Maglite 2D flashlights I use the Kaidomain golden shorty springs to make it easier to get the tail cap on, but they do fit.