These chargers are also used as higher efficiency charger
replacements and retrofits for 12 volt safety lights.Charge lead acid,
SLA, sealed lead acid, Gel, AGM and VRLA batteries.
| General Information |
| Model |
PST-G60-A12 |
| Function |
12 Volt battery charger for lead acid, sealed
lead acid, etc. |
| Type |
Battery Pack Charger for jump-starters, R/C,
Robots, motorcycles, ATVs. Can be left on the battery without causing damage,
also useful for battery maintainer applications. |
| ROHS |
ROHS compliant |
|
| |
| Technical Information |
| Rated input voltage |
90-264 VAC, 50/60 Hz |
| Battery type |
12V nominal SLA, VRLA, Gel, AGM, or
flooded battery |
| Input Frequency |
50-60 Hz |
| Battery voltage |
12 volts
nominal |
| Battery size |
0.7 AH to 20+ AH |
| Charging current |
3.5 amps or 3500mA maximum |
| Charger type |
Lead Acid Chemistry, SLA, VRLA, Gel,
sealed lead acid types and flooded lead acid types, motorcycle and car
batteries |
Charging algorithm
This is the
"European" charge algorithm that does not float charge the battery at the last
stage, but still keeps it maintained. (see the graph below) |
Constant current/constant
voltage/float |
| Stage 1 desulfation. A 200mA constant
current source is applied to the battery. When the battery accepts the 200mA at
a voltage less than 13.9 volts the charger moves to "bulk charge." This could
happen within seconds if the battery is not sulfated. |
| Stage 2 bulk charge stage. 3.5 amps
is applied to the battery until the voltage rises to 14.4 volts. |
| Stage 4 pulsing charge. The current
is switched between 300mA and 3000 mA. If, during the 300mA part of the cycle
the battery drops below 13.3 volts a new pulse is started. If the voltage stays
above 13.3V for more than 30 minutes (verification stage) the charge is
terminated. |
| Stage 5. The voltage is measured and
then the voltage falls below 12.7 volts the charger returns to stage 2. |
| Style |
Desktop |
| Output power |
52W maximum |
| Output voltage |
14.4 volts maximum during charge, up
to 18V during desulfation if required |
| Output options included |
Alligator clips or 5.5 mm OD x 2.1 mm
ID barrel More barrel connectors available separately,
see below |
| Weight |
275 grams, 0.275 kg, 0.6 pounds, 9.7
oz. |
| Cooling |
Natural convection, no fan |
| Efficiency |
>80% |
| Size |
120 x 67 x 41 mm, 4.7 x 2.6 x 1.6
inches |
| Environment |
-20°C to +50°C operating,
-40°C to +70°C storage |
| Isolation |
Double insulated, grounding not
required per UL |
| Input connector |
2 prong IEC C7 removable cord, USA
cord provided unless otherwise requested. |
| Output cable |
18AWG zip cord or coaxial cord, about
5 feet long |
| Vibration, Impact |
5mm, 50Hz, 600 Seconds, 1 meter drop
3 times |
| Protections |
Over Voltage Protection, Output
current protection, reverse polarity protection (auto-clearing), short circuit
protection (auto-clearing) |
| Safety |
CE marked, designed to EN60950,
GB4946, UL1950, certified and marked TUV |
| MTBF |
30,000 hours by MIL-STD
calculation |
| HiPot, ESD |
Hi-Pot 3000 V, 1 minute, ESD
8000V |
| LED Indications |
Power on, but no battery connected |
Power LED Green |
| Desulfating |
The first green light comes on and
stays on until the bulk charge cycle starts |
| Charging |
Charging lights lit to show the state
of charge |
| Charged/Float Charging |
100% light is on |
| Reverse polarity |
Warning light flashes |
| Sleep mode. When the battery is fully charged, or
when the charger is connected to a fully charged battery the charger can
sometimes go into sleep mode. |
Dim green light flashing |
|
|
Twelve optional DC Plugs slip over
the 5.5 x 2.1 mm connector if desired. |
 |
- 2.35 OD x 0.7 ID Barrel
- 3.0 OD x 1.1 ID Barrel
- 3.5 OD x 1.35 ID Barrel
- 4.0 OD x 1.7 ID Barrel
- 4.75 mm OD x 1.75 mm ID Barrel EIAJ-03
- 5.0 mm OD x 3.5 mm ID with center pin
- 5.5 mm OD x 1.5 mm ID type 2 Barrel
- 5.5 mm OD x 2.5 mm ID Barrel
- 6.3 OD x 3.0 ID center pin Barrel
- 6.0 OD x 4.4 ID center pin Barrel
- 7.4 mm OD x 5.0 center pin ID Barrel
- 7.9 OD x 5.6 ID center pin Barrel
|
|
How to desulfate a battery
The desulfation or
rejuvenation algorithm works by detecting that the battery charge current is
low even when the charge voltage is high. This can mimic a fully charged
battery, so additional information is needed. This is done by increasing the
voltage up to 18 volts with a small current limit. If the battery reaches that
current limit without much additional voltage the charger signals that the
battery is fully charged. If, however, the current limit isn't reached by 17 or
18 volts the charger signals that the battery is sulfated and automatically
goes into the desulfation charge as is shown in the above diagram. When the
desulfation is complete the charger switches into the bulk charge mode. We have
found this very effective in rejuvenating sulfated batteries, but if the
battery has lost a lot of water the battery will not have much capacity left.
Advantages:
Much lighter and smaller than transformer based chargers
Can be left on the 12V battery to maintain the battery, for example over the
winter.
Very low cost
Universal Power Input
Samples available now
12V battery charger, 12 volt battery chargers
|
More lead
acid battery chargers 6V, 12V, 18V, 36V, 42V, 48V
