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Unread 21-02-2014, 14:59
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Best place to buy batteries and a charger?

Any suggestions on the cheapest place to buy two 12V batteries and a charger? I see that AndyMark has them, but they seem kind of expensive..
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Unread 21-02-2014, 15:33
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Re: Best place to buy batteries and a charger?

Search for the legal model numbers in the rules (R31). I've used Battery Sharks before and they were pretty good. I got Sigma batteries for $32 each plus shipping two years ago.

The 3 bay charger AndyMark carries is great and is the cheapest price you will find. It has the Anderson connector already wired vs. cheaper units available elsewhere.

Last edited by protoserge : 21-02-2014 at 15:39.
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Unread 21-02-2014, 15:38
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Re: Best place to buy batteries and a charger?

Quote:
Originally Posted by stinglikeabee View Post
Search for the legal model numbers in the rules (R31). I've used Battery Sharks before and they were pretty good. I got Sigma batteries for $23 each plus shipping two years ago.

The 3 bay charger AndyMark carries is great and is the cheapest price you will find. It has the Anderson connector already wired vs. cheaper units available elsewhere.
I can agree with the AM charger. It has a good form factor and does its job quite well. Oh, and the price can't be beat!
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Unread 21-02-2014, 15:42
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Re: Best place to buy batteries and a charger?

AndyMark prices are reasonable for a MK ES17-12. Because of how heavy the batteries are, you will save a lot of money if you can avoid shipping.

We are able to pick up batteries from the local MK warehouse, which is about an hour away. Now that there are many more legal batteries, many teams shouldn't have a problem finding local sources.

One thing to realize when searching for batteries is that if you ask for a specific battery part number, they may give you another battery that is equivalent, but may not be FRC legal. Be sure to double check.

Chargers can be found at any auto parts store.
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Unread 21-02-2014, 15:56
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Re: Best place to buy batteries and a charger?

We have had success with these chargers. We have purchased them for as low as $28 each.

We have ordered batteries directly from MK in the past and they have not charged us shipping when we told them we were an FRC team.
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Unread 21-02-2014, 16:17
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Re: Best place to buy batteries and a charger?

Quote:
Originally Posted by AllenGregoryIV View Post
We have had success with these chargers. We have purchased them for as low as $28 each.

We have ordered batteries directly from MK in the past and they have not charged us shipping when we told them we were an FRC team.
Thanks for the link to the charger, that's a lot cheaper than all the others I've seen!

Has anyone ordered from batteryuniverse.com? Two batteries shipped from them is $72:

http://www.batteryuniverse.com/seale...d-acid-battery
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Unread 21-02-2014, 16:20
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Re: Best place to buy batteries and a charger?

Quote:
Originally Posted by Nathan View Post
Has anyone ordered from batteryuniverse.com? Two batteries shipped from them is $72:

http://www.batteryuniverse.com/seale...d-acid-battery
It's not an MK battery

Quote:
Aftermarket replacement sealed lead acid battery replaces MK Battery ES17-12 battery.
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Unread 21-02-2014, 16:24
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Re: Best place to buy batteries and a charger?

Quote:
Originally Posted by Joe Ross View Post
It's not an MK battery
Oooh, sneaky. Thanks!
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Unread 21-02-2014, 16:27
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Re: Best place to buy batteries and a charger?

Quote:
Originally Posted by Joe Ross View Post
It's not an MK battery
Quote:
Originally Posted by Nathan View Post
Oooh, sneaky. Thanks!
It should be equivalent, and the manual says to email FIRST for approval if you have an equivalent battery.
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Unread 21-02-2014, 16:27
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Re: Best place to buy batteries and a charger?

Quote:
Originally Posted by Joe Ross View Post
It's not an MK battery
Pay attention to this.

The battery brands are always in flux. OP, you haven't already, reference the list provided in the rules R31. If it is not listed there, it has not been ruled legal yet.

Quote:
To seek approval for an equivalent battery, please contact frcparts@usfirst.org with the battery supplier and part number. Approved batteries will be added to the list above.
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Unread 21-02-2014, 16:44
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Re: Best place to buy batteries and a charger?

We purchase our chargers from Walmart. They have 6 amp smart chargers at a reasonable price.

Anybody notice the 6 amp limitation for chargers is not in the manual this year. Or perhaps somebody will correct me & tell me where it is.
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Unread 22-02-2014, 11:54
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Re: Best place to buy batteries and a charger?

AGM batteries tend to lose capacity at high charge rates. For our radio group the rule of thumb is do not charge at higher then 1/3 the rated amp hours of the battery. A 6 amp charger is close enough to 5.67 amps to work fine.


Most important if you purchase batteries get fresh ones. You can have the date codes checked and avoid old ones.
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Unread 24-02-2014, 18:04
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Re: Best place to buy batteries and a charger?

Just put in my order with MK.

We bought, 6 x ES17-12s for $37.50 each. That's with shipping.

Customer Service#: 800-372-9253
Lisa is who I have spoke with each time, she is pretty great.
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Unread 26-02-2014, 19:56
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Re: Best place to buy batteries and a charger?

Wal Mart also carries the Universal Battery model in the list of approved batteries in their online store. With free shipping to your local store, that might save some shipping if you don't have a battery outlet nearby.

Also, note that the list of approved batteries was expanded to nine models/brands in a recent update.
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Unread 26-02-2014, 20:10
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Re: Best place to buy batteries and a charger?

We have been using the Schumacher SSC-1000a. It is a good charger with 2/6/10amp intelligent charge modes.. It is available at Amazon for $40 with free shipping, free two day if you are a Prime member. We just change the 40amp clamps to the Anderson connector and you have a good safe charging system. You can get three cheaper than the AndyMark triple charger and have a higher charge mode available. Only drawback is that you have a bigger footprint and power outlet needs. Though personally I would rather have three separate units. If you have an issue with a triple charger you have no charger...

Here is a link for you..

http://www.amazon.com/Schumacher-SSC...cher+ssc-1000a

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