cat among the pidgeon's
06-09-2007, 12:07 PM
#16
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Originally Posted by sosidge
If you download the instruction manual, page 19 gives the technical specs in English. Although they don't state the capacity of the battery they do state that the charger output is 4A and that the battery will be charged in 1 hour.
So, the battery is ~4000mAh.
The mower gets it's power from the voltage - 36V - not from the capacity if the cells. Unfortunately Bosch are vague about how long it will last when mowing a lawn but I would assume at least 15 minutes constant running to do an average lawn.
That hypothesis works out to 16A is a much lower average current draw than an RC car.
Also, the weight of the battery is not a major concern in an appliance that probably weights 13kg without the battery. If the 36V Li-Ion battery is, say, 500g heavier than an equivalent LiPo battery (again, this figure is off the top of my head), it won't make any significant difference.
Perhaps Li-Ion are more user friendly for Bosch in this application, perhaps they are safer for most consumers, perhaps they are cheaper, I honestly don't know.
But it proves that making assumptions about LiPo in RC cars because of the use of Li-Ion in lawnmowers is a folly. You just cannot compare the two in any way, beyond that they are powered by electricity.
So, the battery is ~4000mAh.
The mower gets it's power from the voltage - 36V - not from the capacity if the cells. Unfortunately Bosch are vague about how long it will last when mowing a lawn but I would assume at least 15 minutes constant running to do an average lawn.
That hypothesis works out to 16A is a much lower average current draw than an RC car.
Also, the weight of the battery is not a major concern in an appliance that probably weights 13kg without the battery. If the 36V Li-Ion battery is, say, 500g heavier than an equivalent LiPo battery (again, this figure is off the top of my head), it won't make any significant difference.
Perhaps Li-Ion are more user friendly for Bosch in this application, perhaps they are safer for most consumers, perhaps they are cheaper, I honestly don't know.
But it proves that making assumptions about LiPo in RC cars because of the use of Li-Ion in lawnmowers is a folly. You just cannot compare the two in any way, beyond that they are powered by electricity.
worth a post i suppose
06-09-2007, 03:23 PM
#17
Tech Fanatic
Originally Posted by sosidge
But it proves that making assumptions about LiPo in RC cars because of the use of Li-Ion in lawnmowers is a folly. You just cannot compare the two in any way, beyond that they are powered by electricity.
Originally Posted by MR JOLLY
Errrrrrr;;maybe i'm wrong then
worth a post i suppose
worth a post i suppose
It is reasonably typical of the World today that people do not do their homework, and post bollocks because "it's worth a post, I suppose." No, it's not. This is far too important a subject to post something that is not researched, and not true. And then, when found out, you think it's a joke.
This claptrap doesn't bore me, but it is wrong. I'll stay here and continue to point out cant when I see it, especially when it leads people to believe things that are patently not true. See you in the next thread!!
06-10-2007, 07:13 AM
#18
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Touchy
internet police
internet police
06-10-2007, 09:18 AM
#19
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Embarrassed.
Internet troll.
Internet troll.
06-10-2007, 01:51 PM
#20
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mr jolly
Last edited by civiceg; 01-02-2009 at 02:49 AM.
06-10-2007, 03:47 PM
#21
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Originally Posted by SlowerOne
Embarrassed.
Internet troll.
Internet troll.
@civiceg
i did get your PM about it ,but since i haven't beenr acing or attempted to go i have No setup
since getting the tamiya battery holders is like getting blood out of a stone ,i'm going to fibre tape across the chassis ,when i do i'll post you some pics
sorry for the delay
this is a LI-PO 7 not a LI-ions slowerone
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