PcMac

Hey guys did anybody try this Batteries???
it's written about it the fallowing:

Extra safety:
Specially treated Lithium material: batteries do not burn and do not explode, even if mishandled in any of the following ways:

Drilling a 5 mm Ø hole through the pack
Bending the pack along its length with a force of 13 kN
Slitting the centre of the cell, approx. 15 mm
Heating to 150°C for ten minutes
Overcharging at 5 Volts and 0.4 C for about 2.5 hours
Reversed-polarity charging at 5 Volts and 0.4 C for about 2.5 hours
Short-circuiting with 100 mOhm for 2.5 hours

All Ro-Power LiPo batteries are fitted with a voltage sensor lead for connection to robbe Equalizers und Lipomat chargers.

[link=http://at.robbe-online.net/rims_at.storefront/49c37865004d3bf8271c3e0dc146067e/Product/View/1&2D4825]The link to their website[/link]

if any body try them please give us a clue


Mo

jzrf6c

Sounds like the A123 Battery

cyclops2

Agreed.

DOT testing similar to a LIFEPO4. Only cells I now use or even have on my property.

And a FMA Cell Pro 4 charger.............What worries.

Life is good.

PcMac

Well I bought my self one of this, 3S 950mA 25C, looks sold, a bit heavy 95gm,
but I don't have enough bal** yet to try to drill it and see it will burn or not

cyclops2

Never beat a new dog.

What is the cell voltage when charged up ?

3.5 to 3.1 volts SHOULD be LIFEPO4 The safe type.

4.0 volts & higher is the vicious bitting dog LIPO is his name.[:@]

cyclops2

Warning!!!!!!

You are asking for some VERY nasty flash & heat if you punch holes in a LIPO delibertly!!!

The heat approaches that of a road FLARE. Severe hand & face burns are a real possibility.!!!!


Do NOT do this dangerous test, it is not needed.

Rich

PcMac

when I got it was 3.5v per cell, after charged become 4.19 to 4.20v per cell, it works fine, don't get much hot when discharging (about 40c),
and it was written in the user guide that the lithium base material of it has been modified using a special process with the result that they do not burn and will not explode. hopefully,,,,

PcMac

thank you Rich, definitely I would not do it I was just kidding

cyclops2

Thank you for not risking injury.

I am GUESSING you have LIFEPO4 due to the 4 volt cut off range. Contact the company to be VERY SURE.

Enjoy

Flypaper 2

Possibly Li-ion batts too. PC Mac, are these round or flat cells??

PcMac

I WENT TODAY (25-03-09) TO THIS COMPANY WEBSITE TO THE LIPOS PAGE AND I FOUND THAT THEY REMOVE THIS EXTRA SAFTY FROM PAGES OF LIPOS ????
BUT I WAS BOUGHT ONE OF THEM ALREADY AND USER MANUAL HAVE THIS NOTES OF EXTRA SAFTY???
ANYWAYS ANYONE SHOULD NOT TRY TO DRILL IT OR DO WITH IT ANYTHING FROM WHAT IS WRITTEN ABOVE..

THANK YOU
MO

write2dgray

The notes still exist on the Robbe website for these batteries here:

http://at.robbe-online.net/rims_at.s...1b3e0dc14605dc

Ro-Power : Specially treated Lithium material: batteries do not burn and do not explode, even if mishandled in any of the following ways:
# Drilling a 5 mm Ø hole through the pack
# Bending the pack along its length with a force of 13 kN
# Slitting the centre of the cell, approx. 15 mm
# Heating to 150°C for ten minutes
# Overcharging at 5 Volts and 0.4 C for about 2.5 hours
# Reversed-polarity charging at 5 Volts and 0.4 C for about 2.5 hours
# Short-circuiting with 100 mOhm for 2.5 hours

Amazing. I'd be interested to know what the difference is with these packs. It would appear they are higher voltage 4.20V (Li-Po?) packs with some of the advantages of A123s (safety).

- David

PcMac

I did send to them email asking why the notes has been removed!? is it not real!? they didn't answer me back but they put the notes back on the website second day
I am happy for it because I am a bit crazy about lipo safety