Yeah, I was just trying to get a rise out of you Steve. God knows the
Cromwell doesn't need anymore speed. :-)
Derek
On Fri, Jan 9, 2009 at 5:33 AM, Steve Tyng wrote:
>
>> I do believe the EV Warriors self destruct at 36V;-)
>
> The Battlebot guys used to run the EVW's at 36v for spinner
8:33:21 PM
Subject: [TANKS] Re: M01's - battery current
> I do believe the EV Warriors self destruct at 36V;-)
The Battlebot guys used to run the EVW's at 36v for spinner weapons.
Anyway, I wouldn't seriously try to run my tank at 36v. It's been
proven very reliabl
Oops forgot to put the link
http://www.evpower.com.au/-Lithium-Ion-LiFePO4-Batteries-.html
On 9/1/09 10:55 PM, "George Mastoras" wrote:
>
> Heres another site on batteries, I kinda like the ready made batteries
> looking like SLAs, very suitable for tanks. The 12AH batteries might be an
> op
Heres another site on batteries, I kinda like the ready made batteries
looking like SLAs, very suitable for tanks. The 12AH batteries might be an
option to build with. Could start with 2 maybe, at that size you could use
the batteries for other applications increasing their return value.
On anoth
I got a local quote from the AU distributor, $1400 for 24v 20ah +
about another $200 for charger - no doubt these genuine ones are all
singing all dancing and tested to hell and came back prancing.
I think I'll get a Chinese knock off from ebay
On Jan 9, 10:33 pm, Steve Tyng wrote:
> > I do be
> I do believe the EV Warriors self destruct at 36V;-)
The Battlebot guys used to run the EVW's at 36v for spinner weapons.
Anyway, I wouldn't seriously try to run my tank at 36v. It's been
proven very reliable at 24v and why mess with a good thing. The 36v
20ah pack could be fabricated to p
7;m not singing praises to
the Chinese, but
Paul H.
- Original Message -
From: "Modena"
To: "R/C Tank Combat"
Sent: Thursday, January 08, 2009 11:11 PM
Subject: [TANKS] Re: M01's - battery current
>
> here is the real deal of LifePo4's, 24v 2
I do believe the EV Warriors self destruct at 36V;-)
Derek
On Thu, Jan 8, 2009 at 8:18 AM, Steve Tyng wrote:
>
> These LiFePO4 batteries are a great find. Looks like I could easily
> adapt the 24v 20ah pack into the Cromwell and save 10 pounds weight.
> The question is could I get a good 2
here is the real deal of LifePo4's, 24v 20a is about $1K in US
US: www.lifebatt.com
UK: www.lifebatt.co.uk
On Jan 9, 10:47 am, jvragu47 wrote:
> Very interesting article Paul. Even mentioned the "Chinese" copies.
> The Chinese probably used lead in these batteries. It seems every
> export from
Very interesting article Paul. Even mentioned the "Chinese" copies.
The Chinese probably used lead in these batteries. It seems every
export from China has a little lead in them.Thanks for the reasearch.
John
On Jan 8, 10:07 am, "Paul Hilton" wrote:
> Here is another link, more info related:
>
Could we do a group buy and get a lower price?
On Jan 8, 2009, at 9:18 AM, Steve Tyng wrote:
>
> These LiFePO4 batteries are a great find. Looks like I could easily
> adapt the 24v 20ah pack into the Cromwell and save 10 pounds weight.
> The question is could I get a good 2hr runtime (hate to h
Here is another link, more info related:
http://www.austrol.com.au/index.cfm?menukey=125
Paul H.
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These LiFePO4 batteries are a great find. Looks like I could easily
adapt the 24v 20ah pack into the Cromwell and save 10 pounds weight.
The question is could I get a good 2hr runtime (hate to have to buy
two of these things) With a little more work I could shoehorn the
36v 20ah pack in and
- Original Message -
From: "Frank Pittelli"
To:
Sent: Wednesday, January 07, 2009 6:29 PM
Subject: [TANKS] Re: M01's - battery current
>
> Paul Hilton wrote:
>> One 24v 20Ah LiFePO4 battery might be had for about $200, more or less.
Frank Pittelli wrote:
Paul Hilton wrote:
> One 24v 20Ah LiFePO4 battery might be had for about $200, more or less.
Where? I haven't found a 24v 20Ah LiFePO4 battery for less than $400.
Those batteries are definitely in our future, but it will be a couple
more years until enough EV cars are using them to cause the p
Paul Hilton wrote:
> One 24v 20Ah LiFePO4 battery might be had for about $200, more or less.
Where? I haven't found a 24v 20Ah LiFePO4 battery for less than $400.
Those batteries are definitely in our future, but it will be a couple
more years until enough EV cars are using them to cause the p
yes, LifePo4 batteries can take thousands of recharges in their
service life, and can be fully depleted without damage, they also will
never explode or burst, unlike some other lithium battery
technologies.
On Jan 8, 7:21 am, Aahz wrote:
> Paul Hilton wrote:
> > I had to look these things up.
yes, thousands of recharges in the service life of a LifePo4, and they
WILL NEVER EXPLODE OR BURST (unlike some other lithium technology
batteries)
On Jan 8, 7:21 am, Aahz wrote:
> Paul Hilton wrote:
> > I had to look these things up. I know very little about new battery tech
> > and was wond
Paul Hilton wrote:
> I had to look these things up. I know very little about new battery tech
> and was wondering about cost vs service life. I found this:
>
> http://www.instructables.com/community/LiFePo4-batteries/
>
> A pair of 20Ah 12v SLAs would cost about $100 plus postage, more or less.
l"
To: "R/C Tank Combat"
Sent: Wednesday, January 07, 2009 11:42 AM
Subject: [TANKS] Re: M01's - battery current
>
> I've just checked on ebay- they cost £125 to over £200 from China.
>
> Still, who needs to eat?
>
> Phil
>
> On Jan 7, 3:55 pm, &q
What would the price of this Li 24v 20ah battery be?
Chrys
$449 But shipping is free from China. Sounds like a good deal (if you are
crazy).
***
If a man speaks in the forest and there is no woman to hear him,
IS HE STILL WRONG?
__ Information from ESET NOD32 Antivirus, versio
Hrmph, that's a scary figure. My SLAs were cheap enough, £12 each,
7.2Ah - that's plenty as far as I'm concerned.
Chris
On 07/01/2009 16:42, Phil wrote:
> I've just checked on ebay- they cost £125 to over £200 from China.
>
> Still, who needs to eat?
>
> Phil
>
> On Jan 7, 3:55 pm, "Chrysantho
I've just checked on ebay- they cost £125 to over £200 from China.
Still, who needs to eat?
Phil
On Jan 7, 3:55 pm, "Chrysanthos Kanellopoulos"
wrote:
> What would the price of this Li 24v 20ah battery be?
> Chrys
>
>
>
> - Original Message -
> From: "Modena"
> To: "R/C Tank Combat"
Modena wrote:
> With twin M01's what sort of continuous current draw do I need to
> allow for in my battery system?
>
> I am thinking of buying a 24v 20ah Lithium, and adding another one
> later if run-time is not acceptable.
According to the specs you provided, the max continuous discharge rate
What would the price of this Li 24v 20ah battery be?
Chrys
- Original Message -
From: "Modena"
To: "R/C Tank Combat"
Sent: Wednesday, January 07, 2009 6:08 AM
Subject: [TANKS] M01's - battery current
>
> With twin M01's what sort of continuous current draw do I need to
> allow for i
Impressive, Li batteries look like a good deal.
My Pb Acid (12 x 18aH x 2) last a few minutes in My Sherman.
(But that doesn't matter much, it usually throws a track in 30
seconds...)
-Original Message-
From: rctankcombat@googlegroups.com
[mailto:rctankcom...@googlegroups.com] On Behalf
weight (6kg), charging cycles (over 2000), and longer discharge than
equivelant SLA or NimH
search ebay for "24v lifepo4"
On Jan 7, 4:26 pm, "Don Shankin" wrote:
> I'm curious as to where you're getting this battery and how much it's going
> to run you. I will be looking at batteries soon and
I'm curious as to where you're getting this battery and how much it's going
to run you. I will be looking at batteries soon and I haven't come across
any lithium batteries with such a high capacity
On Tue, Jan 6, 2009 at 10:08 PM, Modena wrote:
>
> With twin M01's what sort of continuous curren
I have two M01s in T058, which is a pretty heavy tank. There's a 35A circuit
breaker on each motor which has never tripped. I also have a current sensor
installed, albeit a pretty inaccurate one. I've never seen it read anything
over 36A total, even going up a steep hill at full speed. Skid turns
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