Ni-ion battery charging

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Caminoman16

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Hi,all the experts on here (I am a complete numpti with this stuff)
I have a small home built dinghy, with Minnkota 34 O/B and 100AH ni-ion battery- I have lots of
boating experience with petrol outboards, and wish to try quiet cruising, so -
the battery came with a charger, but apparently takes 18 hrs to recharge from 50%,and I'm looking
to moor overnight on a Broads charging point, so - would a 10amp Nocogenius charger (Amazon,£124)
do the job a lot quicker?
Also ,if anyone knows, at low speed on quiet water, roughly how long could I cruise without
going below 50%- ie how much does a Minn 34 draw at low speed?
Many thanks
CM
 
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I wonder if OP really means NiFe Nickel Iron battery. They have a peculiar charge requirement of somewhat high voltage for each cell to push charge in. A very old technology but my nephew has a huge NiFe battery bank for domestic solar PV supply. Very unusual as most are lithium batteries. That is all I know but would suggest you stick with original supplied battery charger. Sorry no idea on endurance of battery motor combination. ol'will
 
Maybe OP means Li-ion? Noco Genius will manage, but there's more to it...

One rule of thumb is to have a charger of at least 10% of the battery capacity, so 10 A would be ok for a 100 Ah battery.

Please tell the motor model number / name, details from the battery label (chemistry in particular) and charger model & specs.
Apparently sold in several variants and combinations.

Consumption depends on use pattern and thrust you demand (load, tide, wind, speed), so tests and making notes is the best way,
 
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The battery is Kepworth Lifepo4 lithium iron (ion?) and the supplied charger states "input 2.5A, output 10.0A." From China,
of course, via Amazon.
There was very little information/instructions with the battery ,apart from the obvious- "don't throw it in the water or set fire to it..."
I'm thinking to run the O/B in a dustbin of water and see how long the battery lasts, and then how long to recharge.
Nor sure if this is a good idea?
The outboard does have indicator lights for state of battery.
Anyway, thanks for the replies.
 
Aha.

So lithium iron phosphate (LiFePO4) and you have a 10A charger.

The battery is rugged - will tolerate deep discharge and recharge many times. A charger should support the LiFePO4 type and deliver pretty high charge (high amps) to enable fast charge. Hence a 30 a charger will (in theory) pump up to 90 Ah into the battery in 3 hours. If it is at 50% half the time is needed.

Lower charge (like your 10A) will take 3x the time (because 10 is one third of 30 :)).

I have a Noco Genius 26000 which is rated for LiFePO4 up to 500 aH, so indeed Noco can deliver, in reply to your question.
 
Many thanks ,looks like I'll have to shake the piggy bank and add to Amazon's profits......
(and finish making the auxiliary power - oars)
 
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