Repowering a CD 28

Discussions about Cape Dory, Intrepid and Robinhood sailboats and how we use them. Got questions? Have answers? Provide them here.

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JD-MDR
Posts: 877
Joined: Feb 8th, '17, 14:23
Location: s/v "Leoma" 1977 CD 30K #46 San Francisco CA

Re: Repowering a CD 28

Post by JD-MDR »

sgbernd wrote:I would not place much value on a high output alternator unless you have the battery banks to take it.

If you have the usual dual lead acid battery set up and basic charge (no smart charger Li ion battery), you can only charge at around 10A anyway per battery. Next time you put a charger on your car battery, watch the ammeter. It will rail (15A) for a couple minutes, then soon settles down to 10A or less for the remainder of the charge. So a 40A alternator or a 400A don't make much difference as the batteries can't accept it.

Steve

Ooookay. Now ya tell me.. I think Beta Marine charged me $350 for the upgrade. I was actually hoping it might recharge faster. The 40 amp took forever to bring it back up
WDM3579
MMSI 368198510
sgbernd
Posts: 265
Joined: Mar 3rd, '06, 11:53
Location: Valhalla
CD-28 #359
Ventura, CA

Re: Repowering a CD 28

Post by sgbernd »

Or you could add a bunch more batteries and loads to make use of it...

-Steve
JD-MDR
Posts: 877
Joined: Feb 8th, '17, 14:23
Location: s/v "Leoma" 1977 CD 30K #46 San Francisco CA

Re: Repowering a CD 28

Post by JD-MDR »

sgbernd wrote:Or you could add a bunch more batteries and loads to make use of it...

-Steve
:) Not
WDM3579
MMSI 368198510
fmueller
Posts: 475
Joined: Mar 15th, '14, 08:25
Location: "Jerezana" CD 27

Re: Repowering a CD 28

Post by fmueller »

Fred Mueller
Jerezana
CD 27 Narragansett Bay
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