Posted: 2/18/2010 1:02:51 PM EDT
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For RE the most common type battery is the lead acid battery. But for a long term shtf with no grid and no way to replace the batteries this could pose a slight problem.
Nickel iron batteries seem to be the answer but they are insanely expensive. Here is I believe the only importer in the US http://www.beutilityfree.com/content/index.php?option=com_content&view=article&id=44&Itemid=129 Check out this video about making your own. Maybe on a small scale this could be doable? Does anyone have exp with these? http://www.silverbearcafe.com/private/02.10/nickeliron.html |
| My local NAPA sold me "acid in a box" for batteries for about $14/box. I calculated a box would cover several dry-charged batteries (it's highly concentrated, and is mixed with water to fill a battery). I'm looking for a source of dry-charged batteries now, as this seems the ideal mix of capacity/price/storage-life. |
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Quoted:
My local NAPA sold me "acid in a box" for batteries for about $14/box. I calculated a box would cover several dry-charged batteries (it's highly concentrated, and is mixed with water to fill a battery). I'm looking for a source of dry-charged batteries now, as this seems the ideal mix of capacity/price/storage-life. Good plan. And ALWAYS remember to add acid to water... NOT (I repeat NOT) the other way around. |