Batteries!
in [Wheelchairs]
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From: Burgerman on 16 Mar 2006 16:44 I have just been sent some batteries from a new company (Canadian) that will fit straight into an F55 Sunrise medical powerchair and a good few others. They will be launched in the UK at the naidex exhibition.. But quick details here before I add the review. I am very hard on powerchair batteries because my chair has taller gearing bigger heavier motors, and a bigger amp controller than any "normal" powerchair. I like it fast controlable and to be capable of serious wheelies that would chuck you over the back if you were not well practised. It helps on the street with lifting the wheels for curbs, and other problem areas... Anyway the result is that I kill a set of "stock fitment" Sonnenchien A500 dryfit deep cycle batteries every 8 to 9 months. And they are not cheap! These are 57ah (thats the size of the fuel tank to those that dont understand batteries! These new ones will fit into the same space. They will fit into the F55s battery box. They are 2 inches taller, and a bit heavier. The advantage though is two fold. They are 76ah. Thats almost exactly 33% bigger! That means that they will give 30 miles range where 20 was your previous maximum. Better for range then hugely! But also, they will have a lower "average" depth of discharge. Purely because of the fact that they are electically bigger. This means that they will last me 18 months where previously I only used to get 9... Because the depth of daily discharge is the thing that determines longevity. If you deep cycle a battery to 10 percent (sat at computer all day) and only ever do this and charge up every night they will give up to 1500 cycles or days. 15 percent = 1000 or about 3 years. 20 percent = 800 30.percent = 600 (2 years) and so on... when you get to an average depth of discharge of 80 percent you only get 300 cycles in ideal conditions.. Thats less than a year. And we dont even have ideal conditions in a powerchair / cheap supplied charger! Thats why I use batteries every 9 months or less. But if you go same places every day and your batteries are bigger then the average discharge is less. so apart from greater range you get better longevity as well. Sunrise should fit these standard! Anyway if anyones interested email me and I will give you their number in the UK. Best of all they cost less than stock, as well as being a new technology that is a mix of agm and gel and being recombinant, valve regulated, sealed etc. AND they have low internal resistance! This means they can make more current under load so hills, modified powerchairs like mine etc all benefit!
From: MikesBrain on 17 Mar 2006 04:42 2006-03-16, Responding to Burgerman... > I have just been sent some batteries from a new company > (Canadian) that will fit straight into an F55 Sunrise > medical powerchair and a good few others. > > They will be launched in the UK at the naidex exhibition.. [...] > Anyway if anyones interested email me and I will give you > their number in the UK. Are you not aiming for a franchise already? We'll be interesting in a smaller version for Elaine's go-cart soonish. We just had some new gels supplied by the "nice ladies", so the F55s can wait for the moment. BTW... We need a pair of F55s drive units for a project, possibly with standard wheels. Got any for sale? (Need the cush-drive gearbox like yours too.) Mike(a)N.UK -- ---- * MikesBrain+WebStuff @ http://tinyurl.com/5ayqt * Stealth-Tracking the public - www.spychips.org * (Your) Electronic Freedom Foundation - www.eff.org
From: Mark246 on 3 Apr 2006 14:42 Yo, Mr. Burgerman,... it sounds like You are The Expert on these batteries/chargers. The situation: I'm an old-fart with a sit-down Escooter that I got from my even older sister. I cannot find any other identifying info as to who built it, other than the "Escooter" label on the front. I have no Owners Manual. Does anybody know of a website where I can download said manual? Escooter ran well for an hour when I first got it a few weeks ago. Now, it acts as if the batteries are dead. When the charger is hooked up, it moves forward and reverse, and lights, turn signals, horn... they all work. The Charger is a Model LB32, 110VAC in, 36V out, 1.5A, made in Yiyun in China. I plug charger into wall: light turns Green. Then plug charger into Escooter, light remains Green with a fast flash of Red once every second. Somewhere online, I found a description of the lights, indicating it should be Red when it's charging... Green when it's charged. My question: What's the Green with flashing Red mean? Thanks. Mark.
From: Burgerman on 3 Apr 2006 15:28 Does your scooter have two or three batteries? I have no idea what your coloured lights mean! Measure the voltage with a cheap digital voltmeter. Off charge they will read 12.7 to 14v if fully charged up and left for say 24 hours. Each battery. If they read 12.3 or less then they are completely flat! And I mean so flat that they will be rapidly sulphating and dying permenantly. When on charge, after a few hours they will read between 13.8 and 14.5v each. IF your charger is working. <Mark246(a)email.com> wrote in message news:1144089732.099956.192510(a)i40g2000cwc.googlegroups.com... > Yo, Mr. Burgerman,... it sounds like You are The Expert on these > batteries/chargers. > > The situation: I'm an old-fart with a sit-down Escooter that I got from > my even older sister. I cannot find any other identifying info as to > who built it, other than the "Escooter" label on the front. > > I have no Owners Manual. Does anybody know of a website where I can > download said manual? > > Escooter ran well for an hour when I first got it a few weeks ago. > Now, it acts as if the batteries are dead. When the charger is hooked > up, it moves forward and reverse, and lights, turn signals, horn... > they all work. > > The Charger is a Model LB32, 110VAC in, 36V out, 1.5A, made in Yiyun in > China. I plug charger into wall: light turns Green. Then plug charger > into Escooter, light remains Green with a fast flash of Red once every > second. > > Somewhere online, I found a description of the lights, indicating it > should be Red when it's charging... Green when it's charged. My > question: What's the Green with flashing Red mean? > > Thanks. > > Mark. >
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