Battery size

Sailariel · January 17th, 2010, 02:56 PM

The 08 Ninja comes with a 6AH Battery. I understand that the 09-10 has an 8 or 10AH Battery. Does anybody know if the battery compartment was enlarged or is the 8 or 10AH Battery the same size as the 6 ?

Alex · January 17th, 2010, 03:24 PM

Alex - where did you hear that the battery changed for 09/10? Yuasa lists the exact same part number for 08 & 09 250r's (a 6AH one), so I'd imagine the compartment didn't change at all, even if the battery itself happened to.

2WheelGuy · January 17th, 2010, 03:39 PM

Yup Yuasa lists the same battery for 2008 and 2009:

Battery Family: Maintenance Free
Battery Type: YTX7A-BS
Voltage: 12
Capacity: 6
Dimensions: 6" x 3.4375" x 3.75"
Weight: 5.3lbs.
Metric Dimensions: 150mm x 87mm x 94mm
MetricWeight: 2.4kg
Acid Volume: 0.33
Amps: 0.7
C.C.A.: 90

http://www.yuasabatteries.com/

On the 2nd gen models Kawasaki switched to a smaller battery at some point and put a rubber insert into the battery box to make it fit.

Ken08Ninja · January 17th, 2010, 04:38 PM

If you want a more powerful battery the YTZ10S will fit. It is a little heavier but has a higher capacity and C.C.A.

http://www.yuasabatteries.com/batter...D=B177&vID=796

Battery Family: YTZ Factory Activated, Maintenance Free
Battery Type: YTZ10S
Voltage: 12
Capacity: 8.6
Dimensions: 6" x 3.4375" x 3.6875"
Weight: 7.0 lbs.
Metric Dimensions: 150mm x 87mm x 93mm
Metric Weight: 3.2 kg
Polarity:
Acid Volume: N/A
Amps: 0.9
C.C.A.: 190

HKr1 · January 17th, 2010, 05:55 PM

Quote:

Originally Posted by Ken08Ninja

If you want a more powerful battery the YTZ10S will fit. It is a little heavier but has a higher capacity and C.C.A.

Same batt is in the R1

Ken08Ninja · January 17th, 2010, 06:08 PM

Just found this battery on eBay.
http://cgi.ebay.com/ebaymotors/YTX7A...item1e5a0ef3e3
It is .1 lbs heavier then the stock but it is a 9 Ah. A cool thing about it is it has two sets of terminals, so you could hook extra accessories without stacking them all on one terminal.

jonthechron · January 17th, 2010, 07:32 PM

My '09 came with a 8Ah yuasa battery.

Ken08Ninja · January 17th, 2010, 07:40 PM

Quote:

Originally Posted by jonthechron

My '09 came with a 8Ah yuasa battery.

What is the battery type? YTX7A-BS is what my '08 has.

Sailariel · January 17th, 2010, 08:23 PM

My 08 also came with the YTX7A-BS. I read somwhere that the 09 has a larger capacity battery--not necessarily a bigger one. I think that a 10AH battery--even though it is heavier, would be a good upgrade. I took my battery off the "Tender" and let it rest for 18 hours. When I tested it, the voltage was 14.4V. Not bad for a tiny two year old battery. I sometimes feel that I am working the electrical system a bit hard with two 70W Xenon Extreme White headlights, two 35W Halogen fog lights, and a 30W Halogen tail light. I usually run the Low Beam and the two fog lights when riding. Three white lights in a triangular configuration would be difficult not to identify as a motorcycle. When I use both high and low beam and the two fog lights, I put a lot of light down the road.

Sailariel · January 17th, 2010, 08:38 PM

Quote:

Originally Posted by Ken08Ninja

Just found this battery on eBay.
http://cgi.ebay.com/ebaymotors/YTX7A...item1e5a0ef3e3
It is .1 lbs heavier then the stock but it is a 9 Ah. A cool thing about it is it has two sets of terminals, so you could hook extra accessories without stacking them all on one terminal.

Ken, The battery you found is an AGM Battery. That battery will take 100% of its rated capacity in a charge. It would call on the bike`s charging system to put out the max all the time. I doubt that our charging coil is capable of putting out 9Amps on a continuous basis. Our 6Ah battery is only capable of taking 25% of its rated capacity without doing damage. That translates into 1.5Ampsat 14.8V. If it were a Gel-Cell Battery, it would take 3Amps at 14.2V. For anything but a conventional Lead Acid Battery (which is what ours is), the charging output would have to be changed or the charging coil would be damaged.

Ken08Ninja · January 17th, 2010, 08:59 PM

Quote:

Originally Posted by Sailariel

Ken, The battery you found is an AGM Battery. That battery will take 100% of its rated capacity in a charge. It would call on the bike`s charging system to put out the max all the time. I doubt that our charging coil is capable of putting out 9Amps on a continuous basis. Our 6Ah battery is only capable of taking 25% of its rated capacity without doing damage. That translates into 1.5Ampsat 14.8V. If it were a Gel-Cell Battery, it would take 3Amps at 14.2V. For anything but a conventional Lead Acid Battery (which is what ours is), the charging output would have to be changed or the charging coil would be damaged.

My service manual has the alternator rated output as 19A@5,000r/min (rpm) 14 V. That's not enough output to charge the battery?

jonthechron · January 17th, 2010, 11:08 PM

Quote:

Originally Posted by Ken08Ninja

What is the battery type? YTX7A-BS is what my '08 has.

Yuasa YTX9-BS 8Ah

jonthechron · January 17th, 2010, 11:23 PM

Quote:

Originally Posted by Sailariel

My 08 also came with the YTX7A-BS. I read somwhere that the 09 has a larger capacity battery--not necessarily a bigger one. I think that a 10AH battery--even though it is heavier, would be a good upgrade. I took my battery off the "Tender" and let it rest for 18 hours. When I tested it, the voltage was 14.4V. Not bad for a tiny two year old battery. I sometimes feel that I am working the electrical system a bit hard with two 70W Xenon Extreme White headlights, two 35W Halogen fog lights, and a 30W Halogen tail light. I usually run the Low Beam and the two fog lights when riding. Three white lights in a triangular configuration would be difficult not to identify as a motorcycle. When I use both high and low beam and the two fog lights, I put a lot of light down the road.

That's kinda pushing it. All that light will eventually leave you in the dark. Those lights on at one time would be using 240W . That's over 16.6 A @ 14.4V. Your definitly reducing the lifetime of your alternator.

But then again, my horn alone pulls 225W at 14.4V for a insane 15.63A to itself!

Sailariel · January 18th, 2010, 12:19 PM

I will stop running the fog lights. The Xenon headlight bulbs seem to do a good job lighting the way. I will, however be able to use them in the fog with the low beam. I may get 20W bulbs for the fog lights. 20W each will cut through the fog fine.

HKr1 · October 11th, 2011, 01:29 PM

Was looking for battery info, and remembering this thread. Looking at the yuasa site, only the 08 got the YTX7A-BS. 09 up gets the YTX9-BS.

HKr1 · October 13th, 2011, 05:50 PM

For those with 08's wondering if the bigger battery will fit. It becomes apparent when the old battery is out, 1/2" pad under the original one

puma22 · February 4th, 2013, 03:27 PM

The 9a Bs battery will fit in the 08 model without the pad underneath it. The 08 models come with a pad underneath the 7a Bs.
I just bought myself a 9a bs battery and placed it on top of the pad, for shock resistance, not sure if it matters to have the pad under or not, but if you keep the pad under, that cover that should be on top of the battery will not fit. I might take out the pad and see if the cover will fit, just because I'm afraid the battery and the terminals will be more vulnerable to rain.

But the 9a does fit if you want a battery with a little more capacity.

Alex · February 4th, 2013, 04:54 PM

Trubin · July 1st, 2014, 07:25 AM

Tried turning the bike on this morning and the battery is dead been looking for a new one online that could ship fast.
found:
http://www.amazon.com/gp/product/B00...=ATVPDKIKX0DER

But would this battery fit into my 2008 ninja 250R ex250-j ?

it sais it will fit but the size is 7 x 6.2 x 5 inches.

Anyone know of a safe option that can arrive fast?

January 17th, 2010, 02:56 PM	#1
Sailariel ninjette.org certified postwhore Name: Alex Location: Belfast, ME Join Date: Jul 2008 Motorcycle(s): 2010 Honda NT-700-V, formerly, Green 2008 Ninja 250R Posts: A lot.	Battery size The 08 Ninja comes with a 6AH Battery. I understand that the 09-10 has an 8 or 10AH Battery. Does anybody know if the battery compartment was enlarged or is the 8 or 10AH Battery the same size as the 6 ?

January 17th, 2010, 03:24 PM	#2
Alex ninjette.org dude Name: 1 guess :-) Location: SF Bay Area Join Date: Jun 2008 Motorcycle(s): '13 Ninja 300 (white, the fastest color!), '13 R1200RT, '14 CRF250L, '12 TT-R125LE Posts: Too much. Blog Entries: 7	Alex - where did you hear that the battery changed for 09/10? Yuasa lists the exact same part number for 08 & 09 250r's (a 6AH one), so I'd imagine the compartment didn't change at all, even if the battery itself happened to. __________________________________________________ Montgomery Street Motorcycle Club / cal24.com / crf250l.org / ninjette.org ninjette.org Terms of Service Shopping for motorcycle parts or equipment? Come here first. The friendliest Ninja 250R/300/400 forum on the internet! (especially Unregistered)

January 17th, 2010, 03:39 PM	#3
2WheelGuy ninjette.org certified postwhore Name: Craig Location: Silicon Valley, CA USA Join Date: May 2009 Motorcycle(s): '98 EX250, '02 EX250, '08 250r, '03 SV650, '98 GSXR750 '03 Hayabusa, '87 YSR50, '84 ZX900, +MORE Posts: A lot.	Yup Yuasa lists the same battery for 2008 and 2009: Battery Family: Maintenance Free Battery Type: YTX7A-BS Voltage: 12 Capacity: 6 Dimensions: 6" x 3.4375" x 3.75" Weight: 5.3lbs. Metric Dimensions: 150mm x 87mm x 94mm MetricWeight: 2.4kg Acid Volume: 0.33 Amps: 0.7 C.C.A.: 90 http://www.yuasabatteries.com/ On the 2nd gen models Kawasaki switched to a smaller battery at some point and put a rubber insert into the battery box to make it fit. __________________________________________________ CraigHarris.org Pacific Track Time CraigsWeb See you at 2014 MotoGP Laguna Seca! We'll be camping on Fox Hill. AFM #278

February 4th, 2013, 04:54 PM	#18
Alex ninjette.org dude Name: 1 guess :-) Location: SF Bay Area Join Date: Jun 2008 Motorcycle(s): '13 Ninja 300 (white, the fastest color!), '13 R1200RT, '14 CRF250L, '12 TT-R125LE Posts: Too much. Blog Entries: 7	__________________________________________________ Montgomery Street Motorcycle Club / cal24.com / crf250l.org / ninjette.org ninjette.org Terms of Service Shopping for motorcycle parts or equipment? Come here first. The friendliest Ninja 250R/300/400 forum on the internet! (especially Unregistered)

July 1st, 2014, 07:25 AM	#19
Trubin Easy Rider Name: Alex Location: Brooklyn Join Date: Jul 2013 Motorcycle(s): 250R Posts: 126	Tried turning the bike on this morning and the battery is dead been looking for a new one online that could ship fast. found: http://www.amazon.com/gp/product/B00...=ATVPDKIKX0DER But would this battery fit into my 2008 ninja 250R ex250-j ? it sais it will fit but the size is 7 x 6.2 x 5 inches. Anyone know of a safe option that can arrive fast? __________________________________________________ www.atrubindesign.com

January 17th, 2010, 04:38 PM	#4
Ken08Ninja ninjette.org member Name: Ken Location: NY Join Date: Dec 2008 Motorcycle(s): 08 Ninja 250R Candy Plasma Blue Posts: 129	If you want a more powerful battery the YTZ10S will fit. It is a little heavier but has a higher capacity and C.C.A. http://www.yuasabatteries.com/batter...D=B177&vID=796 Battery Family: YTZ Factory Activated, Maintenance Free Battery Type: YTZ10S Voltage: 12 Capacity: 8.6 Dimensions: 6" x 3.4375" x 3.6875" Weight: 7.0 lbs. Metric Dimensions: 150mm x 87mm x 93mm Metric Weight: 3.2 kg Polarity: Acid Volume: N/A Amps: 0.9 C.C.A.: 190

January 17th, 2010, 06:08 PM	#6
Ken08Ninja ninjette.org member Name: Ken Location: NY Join Date: Dec 2008 Motorcycle(s): 08 Ninja 250R Candy Plasma Blue Posts: 129	Just found this battery on eBay. http://cgi.ebay.com/ebaymotors/YTX7A...item1e5a0ef3e3 It is .1 lbs heavier then the stock but it is a 9 Ah. A cool thing about it is it has two sets of terminals, so you could hook extra accessories without stacking them all on one terminal.

January 17th, 2010, 07:32 PM	#7
jonthechron ninjette.org sage Name: Jon Location: Usa Join Date: Jan 2010 Motorcycle(s): magHitVE Posts: 649	My '09 came with a 8Ah yuasa battery.

January 17th, 2010, 08:23 PM	#9
Sailariel ninjette.org certified postwhore Name: Alex Location: Belfast, ME Join Date: Jul 2008 Motorcycle(s): 2010 Honda NT-700-V, formerly, Green 2008 Ninja 250R Posts: A lot.	My 08 also came with the YTX7A-BS. I read somwhere that the 09 has a larger capacity battery--not necessarily a bigger one. I think that a 10AH battery--even though it is heavier, would be a good upgrade. I took my battery off the "Tender" and let it rest for 18 hours. When I tested it, the voltage was 14.4V. Not bad for a tiny two year old battery. I sometimes feel that I am working the electrical system a bit hard with two 70W Xenon Extreme White headlights, two 35W Halogen fog lights, and a 30W Halogen tail light. I usually run the Low Beam and the two fog lights when riding. Three white lights in a triangular configuration would be difficult not to identify as a motorcycle. When I use both high and low beam and the two fog lights, I put a lot of light down the road.

January 18th, 2010, 12:19 PM	#14
Sailariel ninjette.org certified postwhore Name: Alex Location: Belfast, ME Join Date: Jul 2008 Motorcycle(s): 2010 Honda NT-700-V, formerly, Green 2008 Ninja 250R Posts: A lot.	I will stop running the fog lights. The Xenon headlight bulbs seem to do a good job lighting the way. I will, however be able to use them in the fog with the low beam. I may get 20W bulbs for the fog lights. 20W each will cut through the fog fine.

February 4th, 2013, 03:27 PM	#17
puma22 ninjette.org member Name: Youssef Location: New Jersey Join Date: Jan 2013 Motorcycle(s): 2008 Ninja 250R Posts: 15	The 9a Bs battery will fit in the 08 model without the pad underneath it. The 08 models come with a pad underneath the 7a Bs. I just bought myself a 9a bs battery and placed it on top of the pad, for shock resistance, not sure if it matters to have the pad under or not, but if you keep the pad under, that cover that should be on top of the battery will not fit. I might take out the pad and see if the cover will fit, just because I'm afraid the battery and the terminals will be more vulnerable to rain. But the 9a does fit if you want a battery with a little more capacity.

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