Chargers (for cars). Chargers (for cars) Zu dawn 2 instructions
The story of the owner of Lada 21093i - electrical and electronics. It's minus outside. The battery charge indicator is asking for charging. It is not surprising that after sitting for 2 days at ~ -7, I did not start. 🙁 Well, that’s not what we’re talking about. There is such a memory device "Rassvet-2", I did not find information about whether the "control" button should be pressed. So, for those who are faced with the same question: - the button is not pressed...
Lada 2109 YNWA › Logbook › Battery and charger Rassvet-2
Stary Oskol, Russia
The battery charge indicator is asking for charging.
It is not surprising that after being idle for 2 days
Well, that's not what we're talking about.
There is such a memory "Dawn-2", I couldn’t find any information about whether the “control” button should be pressed.
So, for those who are faced with the same question:
The button is not pressed and should not be pressed.
Turn on auto mode and forget about calculating time and current.
The charger charges in pulses, the indicator is green again, the density is normal.
Read also
Let's see how it behaves.
We check our batteries before winter.
All the best and easy start.
Lada 2109 2004, petrol engine 1.5 l., 78 l. p., front drive, manual transmission - electrics and electronics
How to charge a car battery with the RASSVET 2 device
Battery, charging, Charger, dawn 2, lead, plates, ampere, current, force, voltage,
Selecting a charger. Reviews. How to charge the battery with a charger
Which one to buy Charger for charging a car battery. Whatever is not expensive and good...
Comments 45
Good day. I came across your article about the miracle of a memory, I have the same one. Right now I’m trying to charge a 77 Ah battery, but the catch is that the charger is rated up to 60. A question has arisen. If I set the charge to 6 A and in auto mode. Can I charge a 77 Ah battery? Thank you in advance.
Of course, I’m not an arrested electrician, so correct me if I’m wrong...
60 or 77 Ah is the battery capacity.
There is no limitation on the capacity of the batteries being charged.
There is an indicator of the maximum current output from the charger, but these are slightly different things.
Set the mode to “auto” and don’t bother with the current strength and calculating the charging time.
Read also
The charger charges perfectly with impulses.
And the capacity suggests that at the same current strength, 60ah will charge faster than 77ah.
It's like filling a 10L and 15L bucket with a 1L bottle.
A 15L bucket will contain more bottles, which will take more time.
This would make it completely clear)
Explained clearly, much more clearly.
At dawn2, with the button pressed, auto mode or vice versa
The plugs are unscrewed only to add distilled water or control the charging mode. If the electrolyte does not cover the plates by 1 cm, then only to inspect that the plates are covered with electrolyte.
All banks have special drainage holes for hydrogen to escape during charging, so I never leave the holes open for monitoring and topping up while charging the battery.
If these holes did not exist, the batteries would swell on the car during a trip, because charging occurs almost constantly after the engine is started.
Don't you need to unscrew or loosen the plugs? will not explode from detonating gas?
I unscrewed it completely, just threw it on top without screwing it onto the thread.
Structurally, the charger (charger) is made in the form of a separate unit, closed by a housing from exposure to bad weather and moisture. A power transformer, powerful control thyristors on radiators, a charge current stabilization board and thyristor control board, terminals for connecting the battery being charged with wires with a cross-section of at least 2.5 mm 2 ("+" on the case) and a power switch are attached to the base of the case. rice. 1.
The control and stabilization board is installed on the front panel of the case in such a way that the charge mode switch buttons - "Manual - Automatic" and charge activation - fall into a specially cut groove and are easily switched. A manual charge current regulator (Rp) is also located on the front panel. The control board diagram is shown in Fig. 2.
Specification of components (in Bulgarian, but in my opinion everything is clear and does not require translation).
- Transistori:
- Diodi:
- Resistance /resistor/:
- Capacitors
a/ VT1 and VT10 = KT209 or BC557
b/ VT3 and VT7 = KT315D
c/ VT2, VT4, VT5, VT6, VT8 and VT9 = KT361D or VS557
a/ VD13 = KC147 /cener/
b/ VD19 = D816D /cener/
v/ VD5 = LED, Russian, /cherven/
g/ VD6 = LED, Russian, /green/
d/ VS1 and VS2 = KU202L
e/ VD1-VD4, VD8, VD9, VD12, VD15-VD18 = D226V or 1N4003
a/ Rp /potentiometer installed/ = 4.7k
b/ Ra / trimer-potentiometer for charging current, Imax = 6.3 A/ = 3.3k
in/ Ru / trimer-potentiometer for the maximum limit on the discharge at auto. cycle 13.9V/ = 3.3k
g/ resistors 1W:
R4 = 150ohm, 1W;
R8 = 300ohm, 1W;
R12 = 1k, 1W
d/ Resistance 0.25W:
R1, R3, R21, R23 = 3.6k;
R2 = 510 ohm;
R5, R10 = 20k;
R6, R7, R13, R24 = 1k;
R11 = 75k;
R14 = 3k;
R18, R19, R25 = 10k;
R22 = 9.1k;
R26 = 300ohm
R27 = 51k;
C1, C2, C3 = 0.1 µF, 160 V
C4 = 20 µF, 16 V;
C5, C6 = 100 µF, 25 V;
C7 = 20 µF, 50 V
Rice. 3.
And the view of the board from the wiring side is in Fig. 4.
Rice. 4.
Any power of 180-250 W can be used as a power transformer, producing an alternating voltage of ~16...22 V and rated for a current of 6...10 A.
In conclusion, I would like to say a few words about the high reliability of the circuit - since thyristors operating in switching mode are used as powerful control elements.
In the section on the question How to properly charge the battery from the Dawn 2 charger? given by the author Inkvisitor the best answer is Look at the battery capacity and divide by 10 to get the charging current!
So 60 a/h means a current of 6 amperes, but in general the slower the better, it’s usually good to charge at 2 amperes
ArtoriuS
Guru
(4073)
I don’t trust automation, it’s better to calculate how much time it takes to charge such a capacity at such a current and just monitor!)
For example, 60 a/h at 2A is 30 hours, if there is such an option to wait so long, then it’s better, but the automation first gives a strong current, and then gradually reduces it and at the end of charging it’s strong again, it just turns out faster, but how effective are these experiments? need to install! =)
Answer from Alexey Zolotov[guru]
until sunset.... two))
Answer from Andrey Kostin[guru]
In automatic mode, the charging current itself decreases and will be 0 when the battery is charged, set the initial current to 4-5A.
In manual mode, you need to gradually reduce the current yourself (correct cycle 4-5A - 10 minutes, 3A - 30 minutes 2A - 2-3 hours 1A 1 hour for a total of 4-5 hours with a completely discharged battery)
Answer from Alexander Chipizubov[expert]
Is it possible to charge it incorrectly? If the battery is 12 V, the rectifier is 12 V and in the front, and if it is 1 A, you will charge it for 6 years.
Answer from Evgeniy Mamonov[newbie]
In the section on the question How to properly charge the battery from the Dawn 2 charger? given by the author Inkvisitor the best answer is Look at the battery capacity and divide by 10 to get the charging current!
So 60 a/h means a current of 6 amperes, but in general the slower the better, it’s usually good to charge at 2 amperes
ArtoriuS
Guru
(4073)
I don’t trust automation, it’s better to calculate how much time it takes to charge such a capacity at such a current and just monitor!)
For example, 60 a/h at 2A is 30 hours, if there is such an option to wait so long, then it’s better, but the automation first gives a strong current, and then gradually reduces it and at the end of charging it’s strong again, it just turns out faster, but how effective are these experiments? need to install! =)
Answer from Alexey Zolotov[guru]
until sunset.... two))
Answer from Andrey Kostin[guru]
In automatic mode, the charging current itself decreases and will be 0 when the battery is charged, set the initial current to 4-5A.
In manual mode, you need to gradually reduce the current yourself (correct cycle 4-5A - 10 minutes, 3A - 30 minutes 2A - 2-3 hours 1A 1 hour for a total of 4-5 hours with a completely discharged battery)
Answer from Alexander Chipizubov[expert]
Is it possible to charge it incorrectly? If the battery is 12 V, the rectifier is 12 V and in the front, and if it is 1 A, you will charge it for 6 years.
Answer from Evgeniy Mamonov[newbie]
