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Light, battery Size and weights Info

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The big homemade pack on the left is the 12volt NiMh battery pack I use for my Marwi handle bar HID.
The middle pack is a 9.6v NiMh pack for my Lume HID
The green batteries are Sanyo HR-4/3FAU 4000mah and HR-4/3FAUX 4500 mah NiMh batteries
These batteries are in just about every bike light battery pack I have ever taken apart.
Here's the lights. I threw in a Halogen just for comparison.
See the New P7 design further down the page.
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Lume spot beam HID combo Marwi flood beam HID combo
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MTE Flashlight P7 LED and 6 batteries.
I included 6 batteries in the photo because I do not know how I am going to drive this light yet.
It takes 3 of the green batteries in series to make 3.6volts at 4500 mah.
If you take two of those packs and put them in parallel, you will have 3.6 volts at 9000 mah.
I will probably get some of the 3.7 volt Lithium's at deal extreme which would be small and lighter than 6 of the big green monsters.
Halogen and 5 batteries
This type of halogen typically came with a 5 battery flat pack for your pocket,
or a 5 or 10 battery water bottle pack.
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Marwi View point Halogen converted to us P7 LED. Note that the mounting base was on the light when I weighed it.
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One of my Homebrew P7's P7 LED and  3 x 18650 Li-On Battery pack
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Size and weight comparisons
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Left: P7 LED - Right: Marwi View point conversion LED Left: P7 LED - Right: MTE flashlight conversion LED
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Left: P7 LED - Right: Marwi Nightpro extreme HID Left: P7 LED - Right: Lume Strada HID
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My Triple SSC P7 light - 241 grams
 
The weights of all the above items
Lights including cords Grams Ounces
Latest P7 LED design 65 g 2.2 oz
Old View point Halogen light 74 g 2.6 oz
Marwi P7 conversion LED 86g 3.02oz
MTE Flashlight P7 conversion LED 131 g 4.6 oz
Marwi HID light 176 g 6.2 oz
Lume HID light 209 g 7.4 oz
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Battery packs Grams Ounces
3 x 18650 Lithium Ion battery pack 157 g 5.4 oz
5 of the Sanyo Hr-4/3FAU batteries 300 g 10.5 oz
Lume 9.6 volt pack 544 g 20 oz
Homemade 12 volt pack with 10 batteries 747 g 27 oz
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Combinations - Lights and batteries Grams Ounces
New P7 LED with 3 x 18650 battery pack 222 g 8.1 oz
Halogen with 5 Sanyo batteries 371 g 13.2 oz
Marwi P7 conversion with 6 Sanyo batteries 487 g 18 oz
Lume HID combo 753 g 27 oz
Marwi HID combo 923 g 32 oz
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