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Will the IP65 leak current out of the battery when connected to the battery but not connected to mains power?

I have a Blue Smart Charger IP65.

And an auxiliary gel battery in my 4WD running a fridge.

Looking to install the IP65 in my 4WD so it is wired permanently to my auxiliary Gel battery, so that when I am in caravan parks I can plug in mains power to top up the charge on the battery, which in turn powers the fridge.

Question - when not plugged into mains power will the IP65 allow current to leak backwards out of the battery so that it slowly drains the battery?

bill-outback asked
bill-outback commented ·

1 Answer

Input Watts for Blue Smart IP65

Can you tell me the watts used by the Blue Smart IP65 chargers in both normal and reduced modes?

Looking at the 7, 10 or 15A models.

radezeeuw asked
jeffw edited ·

2 Answers

IP65 and Battleborn BBGC3

I just bought 4 BBGC3 and a Quattro 48/10000 inverter/charger. Battleborn says to get each battery to 14.6V before connecting them in series as a 48V bank. The IP65 charger has an absorption setting of 14.2V. Can the IP65 be set and used to charge each battery to 14.6V before connecting them into a 48V bank?

cucotx asked
cucotx edited ·

2 Answers

One of two Skyllas not charging

I have two Skyllas ip-65 connected to each other via VE Can (same firmware, same settings) and for some reason one of them charges, while the other one just sleeps. When I "wake up" the sleeping Skylla, it will briefly show up on Cerbo and then becomes unavailabe. There are no error codes, and the unit is receiving 110VAC.

Both are running firmware v. 1.10.


This is the sleeping one


This is the working one.


chrispendl asked
chrispendl edited ·

0 Answers

IP65 won't do anything in bluetooth app

I am fiddling around with my new IP65 blue Smart IP65. I launch the victron connect app and it shows up in the devices list as BSC IP65 12/5 HQ2032MNQWD unknown device (A33c). I click on it and nothing happens. All my other devices work. If I hit the vertical elipses, it asks to reset my PUK, which I do on the unit. Put in the 000000, says it is the wrong code. Really disapointed. Want to send it back.

rickydoo asked
Matthias Lange - DE commented ·

3 Answers

Skylla-IP65 Parallel not connecting to Cerbo GX

I have a couple of Skylla IP65 1+1 chargers "24v/35a 1 output model" connected in parallel. I have them linked together via the VE.Can and a Cerbo GX. They were operating normally until I connected I put online a Quattro 5000. Now they say not connected... I have tried everything I can think of. If there is anything I may be missing please let me know.

togo678 asked

0 Answers

IP65 12/25 2021 inrush current and save fuse size?

Based on a ‘zeilersforum’ topic I found this question discussed: “Blue Smart IP22 charger trips automatic fuse” in this community.

Summary: a IP22 12/30 will trip a 6A and 10A fuse and not a 16A. So, you may need an inrush limiter as proposed by Victron.

In the same discussion Victron added that this phenomina has been discussed while preparing the IP65 design.

Old harbours may be fused at 6A or 10A rather than 16A. The shore fuse may not be accessable after it trips (a reset will do, if accessable).

1:-is the IP65 12/25A model year 2021 adapted in a way to limit the inrush current to 5A or such that a 6A fuse will not trip?

2:-to which save fuse size have the IP65 improvements result in: are 6A and 10A tested?

3:-if not, is Victron willing to test this (or these) charger(s) in order to document needed fuse level and inrush limiter recommendation?

4:-is there a Victron approved hardware interface or schematic with component list available for save use at 6A fuses (a 5A inrush limiter)?

5:-neither manuals are prescribing an “aansluitwaarde” (current supply level) and do not warn for low level harbour fuses. The charger will only take 1.5A average so this inrush is very unexpected. Will you update the manual or supply an addendum on the product tab of the website?

We have a seagoing trailer sailer located in the Netherlands and are planning sailing from remote locations next year, where neither 16A nor 24/7 harbour master may be obvious. The IP65 12/25 is the main charging source for the lfp battery.

Please add the question numbers as a reference to your answers. Thank you.

booty24 asked

0 Answers

Why my Skylla IP65 intermittently stops charging

I installed a new Skylla IP-65 charger (12V/70Amps/3 outputs) with the Skylla-i Control 2 weeks ago. It is setup with 2 lead-acid battery banks. DC power cables are #6 AWG. (1 output is left open) I'm also using the temperature sensor and the remote voltage sense on bank 1. It's been working very well since last night. After a 6 hour boat ride, we got into the marina, connected shore power and the Skylla stayed at 0.0 amp. Skylla-i control was showing bulk mode, with 0.0 amps and battery voltage of 11 volts. I measured 12.5 volts at the battery post and the skylla charger posts. Turned it on and off twice. Same result. Thinking that it might be the temp sensor or the Vsense circuitry problem, I disconnected those 4 wires and switched it on again. Same result. I shut it down again, reconnected all the temp/Vsense wires, turned it on and now it's working!!! The charger was not hot in any way and is not installed in the engine room. Since then, I cycled the AC power this morning to see if it would fail again and it did not. What am I looking at? Cold solder on the circuit board? software bug? known issue? Thanks for your help.

richard-maton asked
rlynch03 commented ·

0 Answers

IP65 charger and smart shunt


I'm going to install an IP65 charger to my system because ad the moment I can't recharge the battery from Orion, we are in lockdown. The question is, do I need to connect the positive to the Victron lithium battery and the negative to the smart shunt or both to the battery? In which order or doesn't matter? Unfortunately, I can't drop the car at the auto electrician's and my 12v knowledge is about zero and I'm desperate.

armstead81 asked
wkirby answered ·

1 Answer

Charging a LiFePo4 with an old blue power IP 65

I have an old blue power IP 65 charger with 3 charging stages and no switches for changes.
I now have a new LiFePo4 battery and I am wondering if I can charge the LiFePo4 with my old blue power charger or if this charger was only designed for lead batteries.
I want to be sure before using it since the LiFePo was very expensive and I don´t want to ruin it.....

astrantia asked
Matthias Lange - DE answered ·

1 Answer

BlueSmart 12/15 settings for self-built LiFePO4 (4s) battery

Hi guys,

I just finished building my battery bank (4S 202Ah Lishen A-grade) and I now want to initialise the battery using my new IP65 12/15 charger. The manufacturer sent along a detailed data sheet where a charging end voltage per cell of 3.65V (x4 = 14.6V) is specified. I programmed the BMS to cutoff at that voltage accordingly.


My question now is: Which settings do I use with the 12/15 charger to fully charge/initialise the battery? I want to top balance the pack and then use the Orion-Tr in my vehicle to recharge it. The initialisation/top balance step will have to occur now. And then just once in a blue moon...

Normal (which I understand is for lead acid batteries, is rated at 14.4V) and Li-Ion (14.2) both seem too low, and High (14.7V) seems too high. Inside the app I can select a preset "LiFePO4" profile, but this also has a setting which to me seems too low: 14.2V absorption and 13.5V float and storage, as 14.2V/4cells = 3.55V

Maybe I am getting something wrong? I'd greatly appreciate your help with this.

Cheers, Jacob

jaycobius asked
jaycobius answered ·

2 Answers

Blue Smart IP65 12/15 charge while under load?

I use this charger for a LiFePo4 battery from BattleBorn. I am re-doing my setup and was wondering if it is safe to leave the charger connected to the battery all the time so that when mains power is available I can plug it in and have it charge the battery while the load connected to the battery continues to run? I believe I have seen that this is okay but wanted to confirm. Secondarily I have the function set to charger - would I need to switch that to power supply or can I just leave it as charger?

Thank you!

tdamon asked
Mike Dorsett answered ·

1 Answer

IP65 12V/15A blue smart charger with AGM battery bank

I have the IP65 12V/15A blue smart charger and would like to use it to charge a bank of two Optima D27 AGM batteries 66Ah each. (Wired in parallel)

Is it ok to use the single IP65 to charge both batteries by connecting it to positive of one battery and negative of the other.

Thank you

lukasa asked
wkirby answered ·

1 Answer

Powering a Victron IP65 5Amp mains Charger from a 150 watt DC to AC Inverter

I have a victron smartsolar 75/15 to charge a Ultramax lithium 12V 100AH battery.

As a backup I want to use a DC to AC 150w inverter to power a victron IP65 5amp main charger using the cigarette 12V output on the car.

The cheap 150w converter does not produce sine waves but square waves.

What problems can I expect?


coly asked

0 Answers

Charging lithium battery with an IP65 from vehicle DC and inverter.

I have a 100ah lithium battery and a IP65 15A charger. I also have a Dakota Lithium 300W inverter. I was wondering if I could charge my battery with the IP65 charger running off of the inverter while I am driving in my vehicle. I have a 4Runner with a 400W DC output in the rear of the vehicle that the inverter would be plugged into. Would the 300W inverter be able to run the charger or does the charger draw too much power? Or is this even safe for any of the items.


bobamike asked
Mike Dorsett answered ·

1 Answer

Lithium and IP65

Hey guys, new here. Relatively new to 12v setups all together.

Bought an IP65 15ah to charge my 25ah lithium and my 100 AGM.

Having an issue charging the lithium from flat, it automatically goes to absorption mode, I can’t get it to charge in bulk at all.
what settings do I need to change, if any, to achieve this?

thanks in advance

benny23 asked
raphael commented ·

1 Answer

IP65 charger always on "standby"

I connected the charger to the bare battery terminals of my car. I followed the instructions for the order of connection carefully: red terminal, black terminal, power cable. I pressed the "mode" button once, but I cannot switch to mode 1.

jp-liegeois asked
Guy Stewart (Victron Community Manager) answered ·

2 Answers

IP65 : reste en position "standby"

J'ai branché le chargeur sur les bornes de la batterie dénudées de ma voiture. J'ai respecté scrupuleusement les instructions indiquant l'ordre de branchement : borne rouge, borne noire, puis câble d'alimentation. J'ai appuyé une fois sur le bouton "mode", mais il m'est impossible de passer au mode 1.

Merci de votre aide

jp-liegeois asked
Thierry Cortassa (Victron Energy Staff) answered ·

3 Answers

IP65 charger: Can't change absorption time to under 1h?!

I have a Canbat 100ah lithium battery and purchased a Victron IP65 charger to charge it. I set up a user defined preset so I could follow the manufacturer's charging specifications. When I try to set the Maximum Absorption Time is the 0-6mins that the manufacturer suggests, the app won't allow me to set anything under an hour? You are able to select any time under an hour but the charger then changes it back to 1hr. The firmware is updated to 3.25. I am doing something wrong or is there a way to set this to under an hour?

Thanks in advance for the assistance!

bobamike asked
scubadoo answered ·

1 Answer

Skylla IP65 controlled by CAN-Bus via Cerbo GX configuration problem

Hi Community,

I have two Skylla IP65 paralleled and connected to a Cerbo GX via VE.Can and one "other" BMS for a LiFePo4 battery, also connected via BMS.Can with 500kBit/s or via the same Ve.Can bus with 250 kBit/s. Works both.

The Cerbo GX shows all three devices. Also the Cerbo shows values from the BMS for Charge Voltage Limit (CVL), Charge Current Limit (CCL) and Discharge Current Limit (DCL). I can see all three values in my BMS configuration tool also. Thumbs up!


Both Skylla IP65 don't react! I tried:

- Connecting only one Skylla
- Setting Parameter #31 BMS to "Yes" - which results in an error #67 "BMS communication lost"
- Switching DVCC on and playing with some parameters

No matter what I do - the Skylla chargers do what they want instead what the BMS wants...

Does anyone have a similar configuration up and running, especially with a Skylla charger?



bricki asked
Daniël Boekel (Victron Energy Staff) answered ·

2 Answers

VECan BMS+Skylla IP65 12/70 1+1 / Current control

Dear Community,

I would like to request your help regarding setup of a Skylla IP65 12/70 1+1 connected on VE.CAN to a intelligent BMS.

A REC-ABMS is issuing CVL, CCL and DCL data (respectively Charge Voltage Limit, Charge Current Limit and Discharge Current Limit). Data appears correctly on a GX display.
The Skylla is also connected to the GX display and data appears ax expected on the same GX display.

I would like to configure the Skylla so it follows CVL and CCL values. I have enabled the BMS Present feature (#31) but this lead to the following error after apporximately 10s : "error 67 : BMS connection lost".

I would be very grateful if someone could help suggesting the setup necessary to get the Skylla to honour the CVL and CCL data.

Best regards,

smoothfroggy asked

0 Answers

Ip65 stuck in storage mode

I have an ip65 blue non smart charger and a mppt solar controller installed in my offroad caravan. I noticed that my agm battery almost competely discharged while plugged into 220v. The ip65 still being in storage mode. Thought it could be as a result of mppt controller but parked under roof so solar also not charging.

Is the ip65 not supposed to wakeup and move to bulk? Any ideas what could cause this and how to fix? Ip65 is non blue tooth so cannot update settings.

thedussst asked
Alexandra commented ·

0 Answers

Automotive Charger 12/4 IP65 : always on "standby"


J'ai acheté le modèle automotive charger 12/4 IP65 (simple : pas le bleu). J'ai voulu l'utiliser pour recharger la batterie de la voiture, en respectant l'ordre de branchement (+, -, secteur). J'ai ensuite sélectionné le mode 2 (> 14 Ah), mais cela repasse en standby après un temps très bref (1 ou 2 secondes). Que se passe-t-il ?

Merci de votre aide,



I bought an automotive charger 12/4 IP65 (not blue). I wanted to use it to charge the battery of my car, respecting the order of connection (+, -, and sector). I selected mode 2 (> 14 Ah), but it disconnected after one or two seconds and went back to standby.

Please, what can I do ?

Thanks a lot for your help

jp-liegeois asked
jp-liegeois answered ·

2 Answers

Blue Smart IP65 12v 15Ah feature issues

Under the user defined charge parameters, the Absorbtion time ‘wheel’ shows hours and minutes, however you cannot configure ‘10mins’ or ‘1hr 10mins’. You can only configure 1hr 2hr 3hr etc.

I have a need to configure minutes.

Also you can only configure a charge rate of 4Ah or 15Ah. I have a need to charge at 6Ah and 10Ah, is this possible with a software update ?

Thank you for your time

pmano asked

0 Answers

Thickness cable IP65 12/15

I ordered the IP65 12/15. I wonder what the thickness of the cable (1.5 m) is... Because, 15A x 1.5m. x 0.2 = 4.5 mm2 diameter....That should be the thickness, correct? The connector cable with indicator leds (BPC900110114 or BPC900120114) is 3.3 mm2 in diameter and also 1.5 meter (see pdf) I was thinking to buy also the connection cable with indicator leds. If the cable of the IP65 12/15 is also 3.3 mm2, then, it's already too small, I think (should be 4.5 mm2). And certainly if I use the connection wire too... Then, 15A current is running over 3 m, needing a wire of (15 x 3 x 0.2 = 9) 9 mm2

So, what is the diameter of the original IP65 12/10 cable? And, can I extend that with the "battery inicator eyelet/panel"? What should I expect? Will it get very hot? Too hot?


pete-v asked

0 Answers

IP67 25A charger, how much load can I run while charging?

If I am running 80A on my 12v battery, can I use the 25A charger to offset the load? If it isn't possible, what is the maximum load I can have while using this? I understand I won't be able to charge, but I just want to slow down the power usage as much as I can.

Is the IP65 any different?

cossie1600 asked
Matthias Lange - DE commented ·

2 Answers

Blue Smart IP65 charger user-defined preset for Valence XP12

Im wanting to pre-charge my 4 Valence XP12s equally prior to connecting them in parallel. I used the Li-ion setting but it seems to absorb at 14.2 and float/storage at 13.5. The Valence calls for charging to 14.6 and float at 13.8. I noticed somewhere in the manual it stated the Li-Ion preset used a special algorithm. So if I create a user-defined preset with those settings, will it pick up this "special" lipo algorithm, or will be the normal algorithm thats possibly not optimal for lithiums?Thanks for any advice or tips.

mtnbrit asked
Justin Cook - Bay Marine Supply USA commented ·

2 Answers

Bluetooth IP65 charger - changing names

We are using multiple Victron IP68 Bluetooth chargers on a heritage railway, one for each carriage. Is it possible to change the displayed names when looking at the chargers using VictronConnect as the proximity of each one to the next is confusing?

Richard Budd asked
Richard Budd answered ·

2 Answers

Blue smart IP65 12V 10A and Lifepo4. Calibration needed?

Hello, I’ve bought a 100Ah 12V lifepo4 battery with a JBD Bluetooth BMS. I used the battery for the first time and I discharged it down to 30Ah. Then, I used a Victron Energy IP65 smart battery 10A charger with factory Lifepo4 settings. the bms shows about 9.91 A of current being charged into the battery during the charging but, after only 4.10 hours the charging cycle is completed. The Victron connect app show that 44Ah were charged and the BMS indicated that the battery is 100% charged (100Ah) which sounds strange to me... if the battery has a capacity of 100Ah and with 30Ah still in it it should have charged 70Ah in about 7hrs. So, either the battery is undersized, or the charger is not properly calibrated for the battery. Is there anybody else having this kind of problems using Blue smart charger with a lifepo4 battery ??? Thanks

gerardo-santucci asked
klim8skeptic commented ·

2 Answers

IP65 Smart Charger bluetooth connection?

I am able to connect bluetooth to the charger when connected to mains power (the lights on the charger are on), but I cannot connect when not connected to mains nor when it is being charged via Anderson Plug by the car or solar panel (charger lights are not on in these instances). Should I be able to connect?

antfel asked
Matthias Lange - DE commented ·

2 Answers

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