Which batteryspec.com battery for a new SP Star?

beernutz

Hall of Fame
Per the SPtennis page http://sptennis.com/ballmachines.asp#STAREdge I need this battery ($85 + S/H) for my Star:





However when you go to batteryspec.com and click on the link for the Star's battery it takes you to this battery ($16.40 + S/H) which doesn't appear to be the correct one:
http://www.batteryspec.com/cgi-bin/cart.cgi?action=link&product=202





However, this battery ($42.30 + S/H) which I found on batteryspec by searching for the model number 12210 from the top picture looks more like the one I need and it has the F2 terminals specified. Unfortunately it's currently out of stock but before I order one I wanted to see if anyone else had bought it and if it was the right one:
http://www.batteryspec.com/cgi-bin/cart.cgi?action=link&product=240


Anybody bought this one for their new SP Star and if so, how did it work out?
 

beernutz

Hall of Fame
Ok I've figured out by looking inside my machine that I need the 12v 17ah to 22ah SLA battery and now I'm just trying to find one which has the correct dimensions and is in stock at a good price.

In other words, nevermind.

Edit: I found what I needed (12v 22ah SLA) at batterysharks.com for $52.80 shipped. I had to buy two NB to F2 terminal adapters for $1.12 shipped too, so $53.92 total for anyone still interested.
 
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marcub

Banned
Ok I've figured out by looking inside my machine that I need the 12v 17ah to 22ah SLA battery and now I'm just trying to find one which has the correct dimensions and is in stock at a good price.

In other words, nevermind.

Edit: I found what I needed (12v 22ah SLA) at batterysharks.com for $52.80 shipped. I had to buy two NB to F2 terminal adapters for $1.12 shipped too, so $53.92 total for anyone still interested.
How long have you had your SP that you need to change the battery?
 

beernutz

Hall of Fame
How long have you had your SP that you need to change the battery?
I got it in February 2010 so I've had it just under 2 years. However, from September 9th to December 18th of last year I didn't use the Star at all and sometime during that span the charging cable came unplugged. When I used it on the 18th it only lasted about half an hour before the battery died and since then when I charge it up again it will only last about an hour. I believe that is the nature of the beast with SLA batteries--you have to treat them right or it will greatly shorten their service life. Prior to September 9th I had been using it for up to 2.5 hours at a time without any loss of performance.

Edit: The above is not exactly correct because after posting I remembered that in September 2010 the original battery stopped charging and SP sent me a new one. So the one that is currently in the ball machine has been used for about 16 months.
 
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marcub

Banned
I got it in February 2010 so I've had it just under 2 years. However, from September 9th to December 18th of last year I didn't use the Star at all and sometime during that span the charging cable came unplugged. When I used it on the 18th it only lasted about half an hour before the battery died and since then when I charge it up again it will only last about an hour. I believe that is the nature of the beast with SLA batteries--you have to treat them right or it will greatly shorten their service life. Prior to September 9th I had been using it for up to 2.5 hours at a time without any loss of performance.

Edit: The above is not exactly correct because after posting I remembered that in September 2010 the original battery stopped charging and SP sent me a new one. So the one that is currently in the ball machine has been used for about 16 months.
Thanks. Just wanted to have an idea when I should expect potential battery issues. I've had mine for some 10 months now - no battery-related problems.

I don't keep it plugged in all the time, I fully charge it right after I use the machine, but then it stays unplugged in between, which may be a couple of weeks at the time.

You're saying it's better that it be always plugged in?
 

beernutz

Hall of Fame
Thanks. Just wanted to have an idea when I should expect potential battery issues. I've had mine for some 10 months now - no battery-related problems.

I don't keep it plugged in all the time, I fully charge it right after I use the machine, but then it stays unplugged in between, which may be a couple of weeks at the time.

You're saying it's better that it be always plugged in?
I believe that's what the Star's manual says to do I think but I'm now having my doubts after having two batteries stop charging in less than two years.

I am actually considering buying a higher quality 12v charger, something like a BatteryTender Plus for ~$45, and use that to charge the battery and keep it in top condition. I've used a BatteryTender charger to maintain my boat batteries for the last 2 years and it has worked flawlessly. Considering that the cheapest shipped 12v 22ah SLA battery I could find was $53 it would probably be a good long-term investment. I would just have to permanently connect its charging cables to the battery posts and then run that connecting cable out of the ball machine somehow.
 

beernutz

Hall of Fame
From the SP Star/Edge owner's manual:

BATTERY CHARGER JACK
The Silent Partner is delivered with a smart battery charger that mounts in ordinary wall outlets. It takes about 12 hours to charge the battery. The charger can stay connected to the machine for long periods of time but must be disconnected when playing.

When properly cared for, the internal battery that powers the machine has a life span of 3 to 5 years, after which it needs to be replaced. Care for your battery by stopping play when speed drops, recharging the battery as soon as practical, and keeping it topped up.

--
I guess from reading those sections that it is not definitive that you should keep the charger always plugged in, however, it is supposed to be a Smart charger which allows for continuous charging.
 

marcub

Banned
--
I guess from reading those sections that it is not definitive that you should keep the charger always plugged in, however, it is supposed to be a Smart charger which allows for continuous charging.
Exactly.
I actually tried this routine once: used it for 3 hrs, fully charged it right after, let it sit unplugged for a couple of weeks and replugged it back in just before taking it for a hit. At this point the light turned green within a minute, which tells me it was still fully charged.
 
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