DA40 replacement battery
Moderators: Rick, Lance Murray
- neongoby
- 2 Diamonds Member
- Posts: 31
- Joined: Sat Jul 16, 2011 4:40 am
- First Name: John
- Aircraft Type: DA40
- Aircraft Registration: N605US
- Airports: KPAE
DA40 replacement battery
Went to my plane on Thursday, and the battery was flat. Local shop sent over a battery cart, and the plane jumped started without problem. Had to run the engine at higher rmp for a couple of minutes before, the G1000 came alive. Flew for a couple of hours. Friday afternoon check on the battery and it is flat again. Am trickle charging it now and see if it is truly dead.
My plane is 2007, I think the battery might be coming to the end. Looking around for replacement battery. Currently installed battery is a Concorde CB24-11M ($440 from AircraftSpruce). Looked and couldn't find any Diamond aircraft listed on any of the battery applications list.
What other battery can be installed, and where can I find the list?
My plane is 2007, I think the battery might be coming to the end. Looking around for replacement battery. Currently installed battery is a Concorde CB24-11M ($440 from AircraftSpruce). Looked and couldn't find any Diamond aircraft listed on any of the battery applications list.
What other battery can be installed, and where can I find the list?
- Steve
- 5 Diamonds Member
- Posts: 1973
- Joined: Thu Aug 12, 2010 1:23 am
- First Name: Steve
- Aircraft Type: DA40
- Aircraft Registration: N432SC
- Airports: 1T7
- Has thanked: 85 times
- Been thanked: 504 times
Re: DA40 replacement battery
The Concorde RG24-11M is approved for the DA40. Weighs 1.5 pounds less than the CB24, and slightly more energy.
Steve
Steve
- Rick
- 5 Diamonds Member
- Posts: 1575
- Joined: Tue Jul 06, 2010 10:09 pm
- First Name: Rick
- Aircraft Type: DA40
- Aircraft Registration: NONE
- Airports: KROA
- Has thanked: 107 times
- Been thanked: 297 times
Re: DA40 replacement battery
I have always used the Concord RG24-15M in our ships. It is 3 lbs heavier than the -11M, but more powerful (13.6aH vs. 11aH). It is also the battery that came with all 3 of the DA40's I've flown.
Roanoke, VA (KROA)
- Steve
- 5 Diamonds Member
- Posts: 1973
- Joined: Thu Aug 12, 2010 1:23 am
- First Name: Steve
- Aircraft Type: DA40
- Aircraft Registration: N432SC
- Airports: 1T7
- Has thanked: 85 times
- Been thanked: 504 times
Re: DA40 replacement battery
Rick:
The -15M is standard on the newer DA40s. I'm not sure it is approved for older ones like mine (I believe it is also larger, so it will not fit in the battery tray of the older Stars).
Steve
The -15M is standard on the newer DA40s. I'm not sure it is approved for older ones like mine (I believe it is also larger, so it will not fit in the battery tray of the older Stars).
Steve
- Rick
- 5 Diamonds Member
- Posts: 1575
- Joined: Tue Jul 06, 2010 10:09 pm
- First Name: Rick
- Aircraft Type: DA40
- Aircraft Registration: NONE
- Airports: KROA
- Has thanked: 107 times
- Been thanked: 297 times
Re: DA40 replacement battery
Not sure about the approvals, either. Dimentionally, they are exactly the same (according to the drawings at AircraftSpruce, anyway). Our 2004 Star had one when we bought it, but that is the oldest one I am familiar with. Diamond should have a list of approved batteries, but I couldn't find it easily this morning...Steve wrote:Rick:
The -15M is standard on the newer DA40s. I'm not sure it is approved for older ones like mine (I believe it is also larger, so it will not fit in the battery tray of the older Stars).
Steve
Roanoke, VA (KROA)
- neongoby
- 2 Diamonds Member
- Posts: 31
- Joined: Sat Jul 16, 2011 4:40 am
- First Name: John
- Aircraft Type: DA40
- Aircraft Registration: N605US
- Airports: KPAE
Re: DA40 replacement battery
Followup on my initial posting. Took the battery out and trickle charged it overnight, and all seems well now.
I must have bumped the battery switch as I was exiting my plane, and that caused the battery to drain. However, 2 hours of flight after the jump start did not recharge the battery.
I must have bumped the battery switch as I was exiting my plane, and that caused the battery to drain. However, 2 hours of flight after the jump start did not recharge the battery.
- Rick
- 5 Diamonds Member
- Posts: 1575
- Joined: Tue Jul 06, 2010 10:09 pm
- First Name: Rick
- Aircraft Type: DA40
- Aircraft Registration: NONE
- Airports: KROA
- Has thanked: 107 times
- Been thanked: 297 times
Re: DA40 replacement battery
Hmmmm... might want to have that alternator tested - something's not right.neongoby wrote:Followup on my initial posting. Took the battery out and trickle charged it overnight, and all seems well now.
I must have bumped the battery switch as I was exiting my plane, and that caused the battery to drain. However, 2 hours of flight after the jump start did not recharge the battery.
Roanoke, VA (KROA)
- Gary
- 5 Diamonds Member
- Posts: 1003
- Joined: Fri Jun 18, 2010 1:09 am
- First Name: Gary
- Aircraft Type: DA40
- Aircraft Registration: N286DS
- Airports: KSAW
- Has thanked: 15 times
- Been thanked: 9 times
Re: DA40 replacement battery
I agree. After 2 hours the battery might not be fully charged but there should be plenty of juice. It might be worth pulling and testing the alternator and at least replacing the brushes. Bad brushes may not show up on the test stand and I don't think it costs very much to replace them. My mechanic replaced the brushes on my old alternator but I decided to replace it anyway and now have it as a spare.Rick wrote:Hmmmm... might want to have that alternator tested - something's not right.neongoby wrote:Followup on my initial posting. Took the battery out and trickle charged it overnight, and all seems well now.
I must have bumped the battery switch as I was exiting my plane, and that caused the battery to drain. However, 2 hours of flight after the jump start did not recharge the battery.
- Charles
- 5 Diamonds Member
- Posts: 644
- Joined: Thu Aug 26, 2010 5:36 pm
- First Name: Charles
- Aircraft Type: DA40
- Aircraft Registration: C-FLEV
- Airports: CYHU
- Has thanked: 28 times
- Been thanked: 102 times
Re: DA40 replacement battery
Can someone confirm whether the -15M is approved on all DA40s? My mechanic installed one in mine about a month ago and it hadn't occurred to me that he might recommend something that's not certified. I don't see any Diamond aircraft listed on the manufacturer's web site: http://www.concordebattery.com/otherpdf/finalfaapma.pdf
- Rick
- 5 Diamonds Member
- Posts: 1575
- Joined: Tue Jul 06, 2010 10:09 pm
- First Name: Rick
- Aircraft Type: DA40
- Aircraft Registration: NONE
- Airports: KROA
- Has thanked: 107 times
- Been thanked: 297 times
Re: DA40 replacement battery
So I thought this was going to be an easy answer... But after coming up empty everywhere I looked, I finally had to call Concorde Tech Support. They told me that Diamond supplies their RG24-15M as the standard OEM battery, but Diamond refuses to release the PMA to Concorde. Therefore, Concorde cannot show any Diamond aircraft in their list of STC or PMA approved aircraft on their website, and technically we must buy our RG24-1xM batteries directly from Diamond (who then buys them from Concorde).Charles wrote:Can someone confirm whether the -15M is approved on all DA40s? My mechanic installed one in mine about a month ago and it hadn't occurred to me that he might recommend something that's not certified. I don't see any Diamond aircraft listed on the manufacturer's web site: http://www.concordebattery.com/otherpdf/finalfaapma.pdf
He also said that they are working on a list of "compatible aircraft" that they know the battery will work in (with no reference to the FAA), and they are going to post that on their web site "soon". He also said that Diamond was not the only manufacturer that has put them in this position. Interesting...
Roanoke, VA (KROA)