What is also very important with LiPo-batteries is if you have solarcells that you have a good regulator so you do not overcharge the battery, then it is dead and you have to buy a new expensive battery.
You must have a regulator MMPT that takes care over-voltage and change it to ampere.
Search found 53 matches
- Sat Feb 24, 2018 8:02 am
- Forum: Performance & Tuning
- Topic: Mounting of solar cell
- Replies: 9
- Views: 5810
- Wed Feb 21, 2018 2:42 pm
- Forum: Performance & Tuning
- Topic: Mounting of solar cell
- Replies: 9
- Views: 5810
Mounting of solar cell
Here is the way I mounted the my solar cell 35W. It is not so big but is enough for keeping my battery fully loaded during the winter with the boat under cover on land. It is also enough for charging the battery fully loaded in sommertime after a couple of days of not using the Mac. For your info I ...
- Wed Feb 21, 2018 2:31 pm
- Forum: Repairs and Modifications
- Topic: Rising the daggerboard with extra keel 200kg
- Replies: 0
- Views: 2768
Rising the daggerboard with extra keel 200kg
Here is the picture for rising and lowering the daggerboard with the extra keel of 200 kg.
It is manuvered from wireless from the cockpit.

It is manuvered from wireless from the cockpit.

- Sun Feb 18, 2018 3:02 am
- Forum: Repairs and Modifications
- Topic: Cooling box
- Replies: 1
- Views: 1801
Re: Cooling box
The cooling box is with compressor from Dometic and their partno is Coolmatic CD20 and suits fine under the pentry. You can also use their bigger model 30 liter CD30, but then you have to put the compressor beside the cooling box. No big issue.
Bertil Rafing
Bertil Rafing
- Sun Feb 18, 2018 2:54 am
- Forum: Repairs and Modifications
- Topic: Cooling box
- Replies: 1
- Views: 1801
Cooling box
I have mounted a cooling box 20 liter under the pentry. Not so big but OK for me.
See attached picture

See attached picture

- Mon Jun 05, 2017 3:32 am
- Forum: Repairs and Modifications
- Topic: Righting moment
- Replies: 45
- Views: 21698
Re: Righting moment
To Admiral and others: -The water ballast will not be 1200 lbs. It will be appr 1390 lbs as there are place for appr 80 liter more water where the permanent ballast is. -As you say the speed when motoring was reduced by the keel with around 2 knots with the permanent ballast still there. When I take...
- Mon Jun 05, 2017 3:18 am
- Forum: Repairs and Modifications
- Topic: Righting moment
- Replies: 45
- Views: 21698
Re: Righting moment
To Highlander and others:
About the CB. Of course we have made o new one. Same weight but several times stronger.
About the CB. Of course we have made o new one. Same weight but several times stronger.
- Thu Jun 01, 2017 3:49 pm
- Forum: Repairs and Modifications
- Topic: Righting moment
- Replies: 45
- Views: 21698
Re: Righting moment
To Admiral and others: As you know I added 441 lbs of a leadkeel in the bottom of the daggerboard and with that getting more righting moment as with the 1150 lbs water ballast. -So if I take away the permanent ballast of 300 lbs and using no water ballast I have totally only added 441-300= 141 lbs t...
- Wed May 24, 2017 3:31 pm
- Forum: Repairs and Modifications
- Topic: Righting moment
- Replies: 45
- Views: 21698
Re: Righting moment
What I forgot to write in my last post is that Majken is pointing higher and with less leeway with my extra keel because it gives appr 35 % more lift at 5 knots. Thats nice, now Majken is good also upwind.
Water ballast gives 0 kg lift.
Bertil
Water ballast gives 0 kg lift.
Bertil
- Wed May 24, 2017 3:23 pm
- Forum: Repairs and Modifications
- Topic: Righting moment
- Replies: 45
- Views: 21698
Re: Righting moment
-I do not agree that extra weight is good in strong winds, but extra weight is good but only when it is placed so it increases the vertical center of graviity and then it is only better when sailing up-wind in winds over 8 meter per second. In all other cases lighter is faster. Thats for the 26M (an...
- Mon May 22, 2017 3:10 pm
- Forum: Repairs and Modifications
- Topic: Righting moment
- Replies: 45
- Views: 21698
Re: Righting moment
I have now added the 450 lbs keel and sailed it. As I do not have to use the 1150 lbs of ballast ithe result is: -It sails faster as the boat is 700 lbs lighter. -The only time I use the ballast-water is when sailing upwind at true wind 8 m/s or higher , then it is faster than without ballast water....
- Fri May 12, 2017 7:48 pm
- Forum: Performance & Tuning
- Topic: Mast raising
- Replies: 18
- Views: 9769
Re: Mast raising
To Neo and others:
If the mast falls it will fall close beside me, but not at me.
If the mast falls it will fall close beside me, but not at me.
- Sat Apr 15, 2017 2:27 am
- Forum: Performance & Tuning
- Topic: Mast raising
- Replies: 18
- Views: 9769
Re: Mast raising
To Neo and others: -Yes the tube is also used as a whisker pool. -I only use single blocks. -The winch I have is an Andersen 34ST (self-tailing), so there is no problem to stop mast raising or lowering if somethings gets hooked up. For the schrouds I use dynemaa 5/4 mm instead of steel wire. Light a...
- Mon Apr 10, 2017 9:32 am
- Forum: Performance & Tuning
- Topic: Permanent ballast on 26M
- Replies: 23
- Views: 11937
Re: Permanent ballast on 26M
To Highlander and others:
-My keel gives me more righting moment than the ballast.
-And when it's really windy I can almost double the RM with the ballast and at the same time using the keel at depth appr 2,1 m.
Bertil
-My keel gives me more righting moment than the ballast.
-And when it's really windy I can almost double the RM with the ballast and at the same time using the keel at depth appr 2,1 m.
Bertil
- Mon Apr 10, 2017 9:26 am
- Forum: Performance & Tuning
- Topic: Mast raising
- Replies: 18
- Views: 9769
Re: Mast raising
To Neo captain: -I have no photo, but the tube I use is used for connection with the headsails clew so I can keep track of the headsail sailing downwind. -When not in use for mastraising or for sailing the tube sits in the forefront of the mast on a track mounted to the mast with a car so I can poin...
