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General accessories Batteries, eye cups, power grips, straps, eyepiece magnifiers, cables, remotes and much more.

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Old 17th February 2018
Jim Ford Jim Ford is online now
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BLN-1 Charging.

I wanted more flexibility in sources for charging BLN-1 batteries than mains and 12V car.

I bought one of these (but not necessarily from this buyer):

https://www.ebay.co.uk/itm/Top-Max-B...8AAOSw8-xZw8jA

It's about the same size as a box of 'Swan Vesta' matches and about the same weight.

The BLN-1 will charge from any micro USB outlet using it, including a separate battery (eg a 'power bank') and also from one of these solar chargers in good sunshine (a sunny day in mid Feb. was fine):

https://www.ebay.co.uk/itm/Solar-Pan...kAAOSwVtZZ5zmu

Jim
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Old 17th February 2018
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rsh1960 rsh1960 is offline
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Re: BLN-1 Charging.

http://www.exprodirect.com/ex-pro-ol...usb-cable.html
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Old 17th February 2018
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Re: BLN-1 Charging.

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Originally Posted by rsh1960 View Post
In fact, I think that's where I bought it from (and why I couldn't find it in my Ebay purchases)!

Jim
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Old 18th February 2018
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Re: BLN-1 Charging.

The ebay site gives the sepcifications as:

"Specifications: Input: 5V==1-2A 10W Output:4.2v==0.6A 2.5W"

Its not impossible for a switched mode power supply to change 5V into 7.2V (in fact lots of low power high voltage systems use this method) but just how does this 4.2V output charge a 7.2V battery?
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Old 18th February 2018
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Re: BLN-1 Charging.

Quote:
Originally Posted by OM USer View Post
The ebay site gives the sepcifications as:

"Specifications: Input: 5V==1-2A 10W Output:4.2v==0.6A 2.5W"

Its not impossible for a switched mode power supply to change 5V into 7.2V (in fact lots of low power high voltage systems use this method) but just how does this 4.2V output charge a 7.2V battery?
I guess it's a mistake. The back of the charger shows the output to be 8.4V at 0.6A (doesn't say whether loaded or unloaded). It works well anyway. The real beauty of it is that it's so versatile regarding sources and is tiny and light (30 grams).

Jim
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