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Old 02 May 2018, 07:24   #1
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Bravo 12v pumps - voltage/battery issues.

In the most recent "which 12v pump shall I buy for my SIB" thread I mentioned my Bravo BTP12 Digital needed replacement after 7yrs use. For the first few years I ran it from the car battery and latterly from a Powerline 12AH battery so I could set up away from the car.

Recent thread: Decathlon electric pump

Well not the pump after all... insufficient investigation on my part. The actual fault might help someone searching the forum in the future.

It's issues were... it was very reluctant to take the push button commands to increase from 240mb... when the tubes were finished... up to 800mb for the HP floor. Then eventually when I'd persuaded the display up to 800mb it would only manage to reach 600mb or less before the pump cut out as if up to pressure.

I had noted when I went to recharge the Powerline battery it always had at least 12V left in it so assumed the pump was following a flaky Bravo reputation.

Just about to click to buy another Bravo when the £139 concentrated my mind.... I unpacked the boat, old Bravo pump, battery and a voltmeter.

Monitoring voltage throughout the inflate I saw by the time the tubes were up to pressure the Powerline was down to just under 10v... and the Bravo wouldn't allow the set pressure to be increased easily.

Put a fresh battery on showing 13v.... set pressure easily raised to 800mb and the HP floor inflated straight up to that pressure for the first time in a couple of years. Seems the electronics in the pump were faulting at this low voltage... the battery was the issue all along and the Bravo is fine.

Now what can I spend the saved £139 on? I mean I've already had it passed by finance for boat purposes.
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Old 02 May 2018, 11:23   #2
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Now what can I spend the saved £139 on? I mean I've already had it passed by finance for boat purposes.


PLB / handheld vhf?
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Old 02 May 2018, 14:06   #3
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Another battery
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Old 02 May 2018, 14:14   #4
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Up to date with radio. PLB a possibility.

Another battery... ahh well that's worked well Jeff. My 85yr old dad doesn't drive but uses a mobility scooter and suffers range anxiety. So the slightest long run to take the power meter below normal he'll say I think the batteries are getting weak so he gets another pair.

He has the last perfectly good 20AH pair under his PC desk so I'll have those... before he drops a wire coat hanger across the terminals and sets fire to the flat!
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Old 02 May 2018, 14:26   #5
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A nice new Peli case to keep all your kit in one place
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Old 02 May 2018, 16:02   #6
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Nice idea but sadly a Peli case or any other rigid type doesn’t fit the way we use the Aerotec with its narrow V floor. By the time the 25l tank is strapped halfway along the floor and Mrs F is firmly established on the seat remaining space only copes with flexible placement of dry bags.
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Old 02 May 2018, 16:59   #7
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Bladder!
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Old 03 May 2018, 02:49   #8
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Damn... rumbled... funding pulled. Been pointed out that harbour dues, council parking permit and insurance uplift totals £145 for the two weeks hols... and the saving on not buying a pump roughly covers that. Oh well next time...
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Old 03 May 2018, 02:52   #9
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Damn... rumbled... funding pulled. Been pointed out that harbour dues, council parking permit and insurance uplift totals £145 for the two weeks hols... and the saving on not buying a pump roughly covers that. Oh well next time...


You snooze you lose
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Old 03 May 2018, 03:08   #10
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Yep spot on... had I ordered something while she was at work I'd have got away with it... but made the dual mistake of waiting until she was home... and recounting the "how I saved the pump" story.

That's a lesson learned.
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