Re: Ping Batteries in cold weather
Posted: Wed Dec 22, 2010 5:35 pm
Won't it tell me when it's definitely finished charging? The BMS is going to be inside the bike along with the battery...
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badnewswade wrote:I won't be able to look at the BMS as it will be tucked away inside the bike along with the battery. It is going in an ultralight battery-powered moped that faces the full horror of British city roads every day - a working mule-type road vehicle, albeit a lightweight one. It isn't going in a toy that only comes out at weekends and gets babied all the time - I could easily end up doing 10-15 miles a day for up to five days a week on it. I really hope this won't be a problem and that Ping's batteries are actually a working, rugged product that you can use in your daily driver, and not a geeky science experiment made out of spider's webs and eggshells, that isn't actually supposed to take heavy use such as repeated percussive stress from potholes, g-forces from emergency stops, and the like.
badnewswade wrote:That possibly unfair freakout aside, Ping has the best reputation of all battery sellers, even when things do go wrong, so I do have high hopes for his product. I just worry when I hear people tell me they have to keep looking at the BMS - which for me is an internal component, which I will never see after installation - just to work out when its' time to unplug the charger.
badnewswade wrote:
Speaking of daily use, I need a long lead for charging, I keep the charger in the house so I can switch off at the mains after its finished. Ping wrote to me saying it used a 3-pin XLR connector to charge up - is it possible to use off-the shelf extension cables for this? I can only seem to find these at audio stores - a typical example is this:
http://cgi.ebay.co.uk/DMX-Lighting-Pro- ... 2eb2271646
http://www.kenable.co.uk/product_info.p ... ts_id=2427
Are these OK? Note that the second ad is for a "2-core" cable. Are Ping's cables 2-core (like our kettle leads)? or does the third pin do something arcane that I need to worry about?
badnewswade wrote:36v 15ah. Costing more than triple the amount SLAs of the same capacity were costing. It's going in the old SLA box, which slides neatly into the body of the bike - it's one of these:
http://www.evalbum.com/818
badnewswade wrote:Guess I'll go for option (c) as at least there's a chance that I won't get a melted cable for my troubles. Think I'll stick to kettle leads though - using an audio lead for a power application just sounds stupid.
badnewswade wrote:People have mentioned that the BMS gets hot - does this mean that it has to be kept away from the battery? I ask because it's always pictured taped onto the battery pack!
badnewswade wrote:
EDIT: Cheap?!? For that kind of money, not only do I want it gold plated, I want a very attractive person with extremely loose morals to come round and install it for me in the nude. And carry me around on their back if it doesn't work straight away...