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Making DVSR Active with Engines On Only

marcham

Jet Boat Addict
Messages
350
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265
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97
Location
Comox, BC
Boat Make
Yamaha
Year
2019
Boat Model
AR195
Boat Length
19
What is the voltage of a fully charged/tendered battery during storage? 12.5 volts sound right?
When measured at the battery directly: 12.7V fully charged, no load and no surface charge. On a tender it should be 13.2 to 13.8.
 
Last edited:

FloJet

Jetboaters Lieutenant
Messages
1,123
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401
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157
Location
Moore, Oklahoma
Boat Make
Yamaha
Year
2016
Boat Model
AR
Boat Length
24
What is the voltage of a fully charged/tendered battery during storage? 12.5 volts sound right?
Yes connext is little finnicky with this so you can get readings anywhere from 12.4-12.7 volts as being fully charged. Just need to take in account what it reads every time your battery is fully charged and use that point as the new number.
 

Pro Build

Jet Boat Lover
Messages
145
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78
Points
67
Location
South Brunswick, NJ
Boat Make
Yamaha
Year
2019
Boat Model
242 Limited S E-Series
Boat Length
24
Yes I was asking about the voltage shown on the connext. Thank you.
 
Messages
1
Reaction score
0
Points
10
Boat Make
Yamaha
Year
2016
Boat Model
242 Limited S E-Series
Boat Length
24
Hello, I just bought a 2016 242 Limited S E Series and came across this while sorting out some charging issues. My thin black wire from the DVSR was attached to positive battery terminal and doing nothing. Anyone with an E Series boat have a pic of what they did?
 

212s

Jet Boat Lover
Messages
291
Reaction score
158
Points
67
Location
1000 Islands
Boat Make
Yamaha
Year
2020
Boat Model
212S
Boat Length
21
Yes connext is little finnicky with this so you can get readings anywhere from 12.4-12.7 volts as being fully charged. Just need to take in account what it reads every time your battery is fully charged and use that point as the new number.
I think Yamaha fixed this with later models. Our 2020 reads correct battery voltages for both house and start when floating, verified with a digital multimeter (fully charged is 12.7v for flooded batteries). My on-board charger causes the DVSR to trip and connect both batteries and it correctly shows 14.4v for both when fully charged on both batteries and then the charger turns off and the batteries read correctly at 12.7v. I'd like to do the red wire mod so the batteries are separated so a dual-bank can do its job properly, but not while it's under warranty as I don't need Yamaha to say I messed up the system if there's an issue. When both are connected, the batteries will equalize voltage properly with twin batteries, so it's not a big issue for now. After the warranty is up, I'll be swapping to a deep cycle and I'll do the mod - seems easy enough.
 

212s

Jet Boat Lover
Messages
291
Reaction score
158
Points
67
Location
1000 Islands
Boat Make
Yamaha
Year
2020
Boat Model
212S
Boat Length
21
Hello, I just bought a 2016 242 Limited S E Series and came across this while sorting out some charging issues. My thin black wire from the DVSR was attached to positive battery terminal and doing nothing. Anyone with an E Series boat have a pic of what they did?
The thin black wire should be on the negative terminal of either house or start battery (both batteries should be connected with a common negative battery cable). The dealer or previous owner probably just made a mistake when hooking up the batteries.
 
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