|
CTEK CT25000 12 Volt BATTERY CHARGER
 Eight
Step Fully Automatic.
Electronic switch-modebattery charger for all 12 V lead-acid batteries,
40-500 Ah. |
FEATURES
• Eight-step fully automatic.
• Revives,
charges, checks and maintains virtually all types of 12 V lead-acid
batteries (WET, MF, AGM and GEL) from 40 Ah to 500 Ah.
•
Desulphation mode with pulses.
• Soft start for severely
discharged batteries.
• Recondition mode with controlled
top charging recovers the capacity of a severely discharged battery.
• Maintenance charging with pulses for the batteries best performance
and service life.
• Supply mode for use as a power pack,
battery backup (UPS) or float maintenance.
• Charges even
almost totally drained batteries.
• Temperature compensated
for optimal charging voltage at all times.
• Low reverse
current, low ripple and input voltage independent (170-260 V).
• Can be connected for months, ideal for seasonal vehicles.
• Compact design with mounting brackets.
• 2 year
warranty against manufacturing defects.
SAFETY FEATURES
• Electrically safe – normally there is no need to disconnect
the battery from the vehicle when charging.
• Minimal gas build-up and a patent-pending spark protection
system.
• Short circuit and reverse polarity protected.
• Splashproof/rainproof (IP 44) and approved for outdoor use.
• Thermally protected.
• Tested by SEMKO AB, in conformity with the following standards:EN60335-1,
EN60335-2-29 following the provisions of directive 73/23/EEC amended
by 93/68/EEC and EN55022, EN 61000-3-3, EN 61000-3-2, EN55014-2 following
the provisions of directive 89/336/EEC amended by 92/31/EEC and 93/68/EEC.
CHARGE CHARACTERISTIC
The MULTI XS 25000 charges and analyses in eight fully automatic steps.
1. Desulphation runs a complete charge cycle within a fraction of
a second. The cycle is repeated during the whole desulphation step.
Every cycle recovers some lead sulphate into useful material.
2. Soft Start tests the battery condition. Severly discharged batteries
needs the soft start step. The charging starts with a reduced current
(max 10 A) for 4 h until the voltage reaches 12 V.
3. Bulk is the main step where most of the charge is returned (80%).
The charger delivers maximum current (25 A) until the terminal voltage
has risen to the set level (or for max 20 h).
4. Absorption completes the charge up to virtually 100% at a constant
voltage of 14.4 V at +25 °C. The current tapers off until 4 h
after the current reached the 3 A level. The step is maximized to
12 h.
5. Analysis is a short intermission in the cycle analysing the voltage
drop, testing self-discharge. The voltage of a defective battery will
quickly drop. The charge cycle will be stopped with a warning indication
if voltage drops to 12.6 V in 2 minutes.
6. Recond is used to recover deeply discharged flooded batteries.
Recondition of deep discharged batteries suffering from stratification.
The voltage increases (to max 15.9 V) with reduced current (5 A) for
a limited time period (4 h), or for 30 minutes. The higher voltage
starts some gassing and mixing of the acid, which is beneficial for
both battery capacity and expected life. The battery could emit explosive
gas during this step.
7. Float is maintenance charge at constant voltage, keeping the batteries
at 100% charge. Normal charging mode are time-limited (max 10 days)
while Supply mode goes on indefinately.
8. Pulse is maintenance charge for maximum battery life. Charging
varies between 95% and 100% state of charge. The battery receives
a pulse, starting a new charge cycle, when voltage drops to set limit.
This keeps the battery in perfect condition when it is not in use.
The charger can be connected for months keeping the batteries fresh.
BATTERY TYPES AND PROGRAMMING
The MULTI XS 25000 can easily be set for different types of lead-acid
batteries or conditions.With MULTI XS 25000 you can charge batteries
from 40 Ah to 500 Ah.
TEMPERATURE PROTECTION
To protect the charger from overheating, the MULTI XS 25000 is equipped
with a power delimiter. At raised ambient temperatures output power
is reduced. The power will also be reduced if the charger should be
accidentally covered. In this way the charger is protected from damage.
The charger continues to operate but at a lower power output. When
the ambient temperature drops the power will automatically rise again.
TEMPERATURE COMPENSATION
MULTI XS 25000 has got a sensor which automatically adjusts the charging
voltage if the temperature deviates from +25 °C. A high temperature
lowers the voltage and freezing conditions is handled by higher voltage.
The temperature is best measured on or very close to the battery.
The sensor should therefore always be placed as close to the battery
as possible when charging. The sensor cable could be prolonged or
cut to length with the same functionality.
TECHNICAL SPECIFICATIONS
| MODEL |
MULTI XS 25000 - 12 V |
| INPUT VOLTAGE |
AC 170-260 VAC, 50-60 Hz |
| CURRENT |
2.9 A rms (at full charging current) |
| COOLING |
Fan |
| BACK CURRENT DRAIN* |
<2 Ah per month |
| OUTPUT VOLTAGE |
Nominal: 12 V |
| CHARGING VOLTAGE |
14.4 V |
| RIPPLE** |
<4 % |
| CHARGING CURRENT |
25 A max |
| AMBIENT TEMPERATURE |
-20 °C to +50 °C. Automatic reduction of power at
increased ambient temperature. |
| CHARGER TYPE |
Eight-step, fully automatic. |
| BATTERY TYPES |
All types of 12 V lead-acid batteries (WET, MF, AGM and GEL). |
| BATTERY CAPACITY |
40-500 Ah |
| DIMENSIONS (L x W x H) |
235 x 130 x 65 mm |
| INSULATION |
IP 44 (Outdoor use)*** |
| WEIGHT |
1.4 kg |
* Back Current Drain is what is draining the battery if the charger
is connected without the power cord connected.
** Quality of the current and voltage is very important. A linear
charger produces a current with a high ripple. High current ripple
heats up the battery and makes the positive electrode to age prematurely.
High voltage ripple could harm other equipment, which is connected
to the battery. MULTI XS 25000 produces a high quality current with
very low ripple. There is no need to disconnect the battery from
the vehicle.
*** IP 44 cannot be guaranteed if the charger is not positioned
horizontally with the long side or top side turned up.
BULK CHARGING TIME
| BATTERY SIZE(Ah) |
TIME TO ~80% CHARGING(h) |
| 60 |
2 |
| 100 |
3 |
| 225 |
7 |
| 500 |
16 |
|
|
