PROBOAT RECOIL 17 12.1 VOLT BATTERY

Started by Les-Forbes
12 replies 11 likes 0 followers Last activity: 9 years ago
#13

PROBOAT RECOIL 17 12.1 VOLT BATTERY

Yes Dave I'll do that in the interim. Thank for your help and suggestions.
#12

PROBOAT RECOIL 17 12.1 VOLT BATTERY

Hi Les
Yes I agree there is no way with the charger supplied you can do anything other than charge to full capacity.
I do believe we have made suggestions on another thread on the site advising possible solutions. The cheapest would be to just buy a simple battery checker and make sure after you use the battery the voltage is around the 3.7-3.8v mark. Run a bit more to reduce and short charge to increase. if you are intending to become serious about modelling and using LiPos then, like most of us you will want to buy a charger that does the job for you automatically. There is a cost but if you protect your batteries they will last and save you money in the long term.
I've not had much hair for some years so probably that's why!
Live long and prosper

Dave
Liked by Les-Forbes and RNinMunich
#11

PROBOAT RECOIL 17 12.1 VOLT BATTERY

Thank Dave M.

It get's confusing when in the manual it states... Charge to half capacity after use. But of course, how can you charge it to half capacity, when the charger charges EACH cell separately. it's hair pulling out stage. LOL.
#10

PROBOAT RECOIL 17 12.1 VOLT BATTERY

Hi Les
If you are happy with this connector and your other equipment uses this type I would leave well alone.
If you do decide to change then I agree XT60 or Deans are common. Does mean you will need to change all the connectors on your equipment or get converters.

Not sure I agree with keeping Lipos at above storage charge for any length of time. I have had several of mine balloon before I knew better and I was using them every week.
I suspect high temperature may be a factor but that's just my opinion.
I now make sure any batteries I have charged are used even for a short time just to drop them from full charge. I use the air boat on the bench.
I do agree you should use a storage charge if you are unsure when you may use them again.
Live long and prosper

Dave
Liked by RNinMunich
#9

PROBOAT RECOIL 17 12.1 VOLT BATTERY

Hi Les, No problem, you only need to put a storage charge in, if you are leaving them for months

Mark
Etherow Model Boat Club
Liked by Les-Forbes
#8

PROBOAT RECOIL 17 12.1 VOLT BATTERY

Can I leave this Li-po battery, which is fully charged as of 8th October, for a period of one week. I mean will it be safe to do that.
#7

PROBOAT RECOIL 17 12.1 VOLT BATTERY

if you can it may be better to cut off the original connectors and solder new XT60 connectors. They are not expensive and will make getting new batteries way easier.

https://www.ebay.co.uk/itm/20Pcs-10Pairs-XT60-Male-Female-Bullet-Connectors-Plugs-for-RC-Lipo-Battery-New/222587632105?hash=item33d341b9e9:g:8b0AAOSwY0hZulfB
"that's not a bug its just an undocumented creature."

Sir Terence David John "Terry" Pratchett, OBE (28 April 1948 - 12 March 2015)
Liked by RNinMunich and Les-Forbes
#6

PROBOAT RECOIL 17 12.1 VOLT BATTERY

Hi Les, NONE of the above!
It's an EC3 connector.
If you are going for hi speed hi amps I would recommend you swap both sides for XT60 or Deans connectors. Pic shows an EC3 (blue) to Deans/XT (red) adapter so you know what they look like.
You may find it easier to find batteries with the XT connector. Cheers Doug 😎
Young at heart 😉 Slightly older in other places.😊 Cheers Doug
Liked by Brucef102
#5

PROBOAT RECOIL 17 12.1 VOLT BATTERY

Thanks again Dave. Keeping with this same battery, can you tell me please if this battery has a JST, DEANS STYLE, MINI-TAMIYA, or a XT60 connector.
#4

PROBOAT RECOIL 17 12.1 VOLT BATTERY

Hi Les
The higher the ahr rating should give you a longer sail, assuming the current drawn remains the same. if you double the speed and use more current the benefit may be marginal
Dave
Live long and prosper

Dave
Liked by Les-Forbes
#3

PROBOAT RECOIL 17 12.1 VOLT BATTERY

Thanks Dave. That now makes sense. My last point was in thinking if I had a higher rated battery eg 2200 mAh I would be able to run it longer in the water than the supplied 1300 mAh.
#2

PROBOAT RECOIL 17 12.1 VOLT BATTERY

Hi Les
It means what it says. Good to see a clearly marked battery for once.
You can discharge at up to 20 times the capacity 1300x20= 26000Ma or 26amps
It claims you can charge at 3 time capacity 3.9amps. Personally I never charge my Lipos at more than the rated capacity 1.3amps in your case.
The battery capacity is 1300Mah has 3 cells (3S) and a nominal voltage of 11.1v (3.7v per cell)

Each Lipo should be treated in accordance with its specs. A 2200mah battery may well have a different discharge rate. The dearer batteries usually have higher discharge capabilities.
Charging should be done individually and again in accordance with its specs.

Not sure why you are asking the final question but if you are thinking of using two batteries together they should have identical specs.
Personally I would advise against this as you run the risk of damaging a battery if all the cells are not balanced, not to mention the risks involved both personal and material.
Live long and prosper

Dave
Liked by tidtug and Falmouth1729 and
#1

PROBOAT RECOIL 17 12.1 VOLT BATTERY

Can anyone explain to me what the following statements, printed on this battery, means please.

1) 20C DISCHARGE RATE
2) 3C CHARGE RATE
3) 1300 mAh 3S 11.1v

If I purchase a futher battery at say 2200 mAh, would I need to make sure it discharges and charges at the same figures as the 1300 mAh above.

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