Back up lights

You have to watch the voltage rating.

I took a bunch of my camera's AA NiMH batteries, and put them in a Surge. The light was so dim I thought the batteries were dead. Then I realized the NiMHs are rated at 1.2 volts, instead of 1.5 volts for an alkaline.

Russell

[Dave Lizdas]

I just learned that off-the-shelf C rechargables are not any more energetic than AAs. you have to look at the Amp Hour rating too - how much current can a cell push in an hour, which is charge, more like the energy of a cell. An off the shelf rechargeable Duracell AA is around 2300mAh. On www.zbattery.com, they sell rechargeable Cs rated at 5000mAh. Looks like you get what you pay for too.

They say a Malmart recharger ment for little camera batteries wont do a $12 C cell justice. the recharger is as important as the cell.

For now I'm using disposable Duracells (and recycling them.) A friend of mine dives a UK light cannon handheld HID on a Goodman handle and it gobbles up 8 Cs every 4 hours. Does anyone know for sure what's good and economical?

[normblitch]

I bought some expensive C cell rechargable batteries and did a burn test with my SL4s; waste of money. instead of four hours I got two. Cindy, what kind of rechargable batteries and charger do you use?

guys , can you recommend some budjet friendly source of C size NiMh rechargeables? i just ordered two UK SL4 and i need to find batteries and charger.

http://www.mahaenergy.com/store/list...?idcategory=18

(I have only used their AA's, and am CRAZY Happy with them)

Norm

An off the shelf rechargeable Duracell AA is around 2300mAh. On www.zbattery.com, they sell rechargeable Cs rated at 5000mAh. Looks like you get what you pay for too.

You're comparing apples to oranges. A C cell and a AA cell are both 1 1/2 volts, but since the C is twice as big, it usually has about twice the amp-hour rating.

When Everready came out with their first consumer AA NiMHs, they were 1700mAh. Several months later they were 1800mAH. A year later they were 2000mAh, and now I believe they are 2300mAh. Like computers getting faster every year...

I'm no battery expert; these are just observations from a consumer.

Russell

[normblitch]

An off the shelf rechargeable Duracell AA is around 2300mAh. On www.zbattery.com, they sell rechargeable Cs rated at 5000mAh. Looks like you get what you pay for too.

You're comparing apples to oranges. A C cell and a AA cell are both 1 1/2 volts, but since the C is twice as big, it usually has about twice the amp-hour rating.

When Everready came out with their first consumer AA NiMHs, they were 1700mAh. Several months later they were 1800mAH. A year later they were 2000mAh, and now I believe they are 2300mAh. Like computers getting faster every year...

I'm no battery expert; these are just observations from a consumer.

Russell

As an over 3-year user of MAHA's, this has been my experience...my first were maybe 1900 mAhr, and now they are in the 2400 range...

nhb

http://www.mahaenergy.com/store/listCategoriesandProducts.asp?idcategory=18

(I have only used their AA's, and am CRAZY Happy with them)

Norm

If you check the specs, you'll see that these are 1.2v also. I don't think they'll work worth a toot in your SL4.

Russell

[citracaver]

Sludge wrote:

You're comparing apples to oranges. A C cell and a AA cell are both 1 1/2 volts, but since the C is twice as big, it usually has about twice the amp-hour rating.

When Everready came out with their first consumer AA NiMHs, they were 1700mAh. Several months later they were 1800mAH. A year later they were 2000mAh, and now I believe they are 2300mAh. Like computers getting faster every year...

I'm no battery expert; these are just observations from a consumer.

Russell

I think the point Dave was trying to get across is that some battery companies are selling C sized rechargables that have the same mAH rating as the AA's. One example is Rayovac. Thier rechargable C's are rated at 2100 mAH! Basically a AA rechargable in a C sized package. What a ripoff. If you look around on the internet you can find C's with ratings of 5000 mAH or more. What was said about the voltage is true though. An SL4 would be dimmer than usual on NiMh rechargables, even when they are fully charged.

[ARY]

http://www.mahaenergy.com/store/listCategoriesandProducts.asp?idcategory=18
(I have only used their AA's, and am CRAZY Happy with them)

Norm, these batteries are almost 4 times cheaper, but maha claims that their products last 1.3 times longer. Are you realy CRAZY about Maha (compare to so called "others")? Need your user's experience.
Look: http://www.batteryspace.com/index.as...PROD&ProdID=40
BTW they have nice AC/DC computerized charger for all types of batteries.

[ScubaG]

Any tried or used the Tektite 300 LED Dive Light? I haven't used it myself but considering them for my 2nd backup light.

EXPEDITION 300 The civilian version of a U.S. Navy EOD LED flashlight. 7 Brilliant white LED's with a 10,000 hours lamp life (never worry about burned out bulbs again). Serious lighting with the same heavy-duty construction as our other flashlights. The solid state LEDs put out more light per watt than traditional flashlight bulbs and are shock and vibration resistant too. Use 3 C-cell alkaline batteries that will last for over 40 hours at full power (and up to 60 hours more at a lower level). Double O-ring sealed, with Twist on reliability. Depth rated 1,000 feet. Wrist lanyard included. 7.75"L x 1.9"W. U.S. patent #6,168,288. Made with pride in the USA.

They are going for around $60 on eBay.

G.

[michael-fisch]

Any tried or used the Tektite 300 LED Dive Light? I haven't used it myself but considering them for my 2nd backup light.

EXPEDITION 300 The civilian version of a U.S. Navy EOD LED flashlight. 7 Brilliant white LED's with a 10,000 hours lamp life (never worry about burned out bulbs again). Serious lighting with the same heavy-duty construction as our other flashlights. The solid state LEDs put out more light per watt than traditional flashlight bulbs and are shock and vibration resistant too. Use 3 C-cell alkaline batteries that will last for over 40 hours at full power (and up to 60 hours more at a lower level). Double O-ring sealed, with Twist on reliability. Depth rated 1,000 feet. Wrist lanyard included. 7.75"L x 1.9"W. U.S. patent #6,168,288. Made with pride in the USA.

They are going for around $60 on eBay.

G.

Can you think of a way to sharply focus 7 LEDs? Since I need lights that I can also signal with, a multiple LED light is worse than useless. So far the only LED light that I have seen /tested with a tight enough focus is the Heser Backup, unfortunately the price is serious, which is in keeping with the quality of the light.

Michael