05-04-2009, 04:22 PM | #1 |
Join Date: Mar 2009
Location: Silver Springs, NV
Posts: 45
|
Replacing a battery
Okay, I got all the info on my old battery and want to go get a replacement. Then I started to wonder if maybe buying a 'better' battery would be the right move, or should I by the exact same thing..... :?:
So can anyone tell me would it be better to buy a battery with more Ah and/or more CCA? Are the AGM (maintenance free) batteries a good bet, or good ole' dry cell? current battery was 12volt 9Ah (10 H.R.) 85 CCA at 18A 137mm long 140mm high and 76mm wide
__________________
Vbike V4-SW 250cc |
|
05-05-2009, 07:31 AM | #3 | |
Join Date: Sep 2008
Location: Nashville, TN
Posts: 588
|
Re: Replacing a battery
Quote:
If it's just starting the bike (and it will turn over the engine?), what you have is fine. If it is having difficulty turning the starter, you need to increase the CCA rating. AGMs are nice because they won't spill or need topping off. If you need more power to run lights or other electric devices, larger capacity is the way to go: Increase the Amp hour rating. 'Course that usually means a larger battery case and you may not have enough space for one to fit. JMO, Bill |
|
|
05-05-2009, 11:01 AM | #4 |
Join Date: Jul 2008
Location: Gijon, Asturias,Northern Spain
Posts: 396
|
9 Ah is man enough to start anything up to 250 cc or so. With batteries, the amp hour rating is not the full story. I can show you two batteries with the same amp hour rating and one (Yuasa) weighs 30% more than the other (unknown Chinese make). The difference in performance and longevity is astounding. (the better one has more lead in it).
With the exception of a couple of very special AGM batteries, wet lead acids have lower internal resistance and can supply heavier currents for longer than either GEL or AGM type. The great advantage of these is that they can be positioned in any way you like and don't leak. Just go for a well-known make, Yuasa preferably, although European ones like Varta, Tudor, etc are good. If you decide on an AGM type sealed battery make sure the connections are suitable for automotive use, that is by screws. A lot of those come with quick fast-on connector tabs, and are only suitable for low current demands usually found on things like alarms and UPS's.
__________________
Jincheng Monkey JC50Q-7 (two of them) Skyteam Dax replica ST110-6 (two of them) Zongshen ZS125-43 Qingqi QM200GY-BA Super Motard Yamaha Virago XV1100 Triumph Bonneville SE Qingqi QM110GY PGO Bug rider 250 Buggy |
|
05-05-2009, 03:05 PM | #5 |
Join Date: Mar 2009
Location: Silver Springs, NV
Posts: 45
|
awesome, thanks to you all for laying it out for me. I'll feel a lot better about what I'm doing at the store today
__________________
Vbike V4-SW 250cc |
|
|
|
|
|