4 ms·
Please provide a source on this, as this is directly opposite to what the article states, and dis-proven by millions of cars starting in freezing weather.
by nicholas73 12y ago
Please provide a source on this, as this is directly opposite to what the article states, and dis-proven by millions of cars starting in freezing weather.
- coryrc 12y agoA PR puff piece posted by a stock booster claims new invention is the greatest thing ever with no drawbacks? I'm so surprised. Every year when winter comes, there's a huge spike in starter battery sales. I'm not sure what you mean by "dis-proven". Start here: http://www.evdl.org/ http://www.evdl.org/
- meepmorp 12y ago> dis-proven by millions of cars starting in freezing weather Car batteries are lead acid, not lead carbon. I'm not familiar with the technology, but I wouldn't assume the same performance for different chemistry.
- coryrc 12y agoAnd a Battery University link: http://batteryuniversity.com/learn/article/discharging_at_high_and_low_temperatures http://batteryuniversity.com/learn/article/discharging_at_hi... And the most relevant paragraph: The performance of all battery chemistries drops drastically at low temperatures. At –20°C (–4°F) most nickel-, lead- and lithium-based batteries stop functioning. Although NiCd can go down to –40°C (-40°F), the permissible discharge is only 0.2C (5-hour rate). Specially built Li- ion brings the operating temperature down to –40°C, but only on discharge and at a reduced discharge. With lead acid we have the danger of the electrolyte freezing, which can crack the enclosure. Lead acid freezes more easily with a low charge when the specific gravity of the electrolyte is more like water.
- coryrc 12y agoHere's another: http://lithiumpros.com/how-does-cold-weather-affect-lithium-batteries/ http://lithiumpros.com/how-does-cold-weather-affect-lithium-...