Lipo Heating

[hanson]

Packs need to be kept at an ambient temp in the winter imo. Without Daves HotBox, I would constantly be seeing the dreaed Align ESC low voltage tail wag..

What do you class as an ambient temperature? I have found the warmer the better in terms of performance.

[Wheels]

i bought a heated pizza delivery bag from maplins last year, and that worked alright once it got started.

However be warned...left it on 4-5 hrs inside my car plugged to the fag lighter and hey presto....flat car battery,,,middle of winter, not good.

Thanks to gary from our site for getting jump leads.

[Kozmyk]

What do you class as an ambient temperature? I have found the warmer the better in terms of performance.

Ambient temperature often gets used when people mean room temperature.
It's wrong of course but an understandable mistake.
Strictly speaking ambient just means "of the surroundings" so in the middle of a frosty winter field the ambient temperature could easily be -1°C

[adieuk]

get one of these 24L LITRE LARGE ELECTRIC 12v 240v COOLER & HEATER BOX on eBay (end time 25-Sep-10 17:55:51 BST)

does hot lipos in the winter and cold drinks in the summer

dont know if its been said in this post but jtf had these for sale in there store

[Kozmyk]

I've seen a few of these mini fridge cooler/heaters and haven't yet seen one with a thermostat.
They've just had a switch to select Cooler or Heater mode.
xygax's idea of adding your own thermostat makes sense to me.
Otherwise you'll be getting a toasty 50°C and I'm not sure that's a good temperature for lipos.

[hanson]

Ambient temperature often gets used when people mean room temperature.
It's wrong of course but an understandable mistake.
Strictly speaking ambient just means "of the surroundings" so in the middle of a frosty winter field the ambient temperature could easily be -1°C

That is my understanding of ambient temperature as well, which was why I asked the question. Lipo's would definately struggle if the ambient temperature was -1 c

I've seen a few of these mini fridge cooler/heaters and haven't yet seen one with a thermostat.
They've just had a switch to select Cooler or Heater mode.
xygax's idea of adding your own thermostat makes sense to me.
Otherwise you'll be getting a toasty 50°C and I'm not sure that's a good temperature for lipos.

I agree, 50c might be a bit too hot. Does anybody know if the one on ebay that Glenj linked to is adjustable heat? I think 20-30c is about the temp I want my lipos at.

dont know if its been said in this post but jtf had these for sale in there store

What/where is jtf?

[Dave Rand]

Tbh you'll be opening and closing the lid quite often through the day so I doubt it will get really hot. The model touring car boys use to charge them on there dash boards to get them as hot as they could lol think the brca have ban'd lipo heating now (funny that)

[Nick B]

Last winter i used a large polysyrene box i got from an aqautic centre and dropped a hot water bottle in,works very well