I.

ENGINE START

1.Set charge rate switch and timer to OFF positions. (No timer on Model 2352.)

2.With the charger unplugged from the AC outlet, connect the charger to the battery following instructions given in section F.

3.Plug the charger AC power cord into the AC outlet, then move timer from OFF to HOLD position. (No timer on PS- 2352).

4.Set the charge rate switch to the engine start position that matches the vehicle battery and then crank the engine. Fol- low the duty cycle printed on the front panel of your charger for proper ON / OFF times. During extremely cold weather or when the battery is severely exhausted, charge the bat- tery for about 5 minutes before cranking the engine.

5.If the engine fails to start, charge the battery for 5 more minutes before attempting to crank the engine again.

6.After the engine starts, move the charge rate switch to OFF and unplug the AC power cord from the outlet before dis- connecting DC clamps.

Do not try to engine start a vehicle without a battery in it. You may damage the vehicle’s system. If the engine spins, but doesn’t start after several starting attempts, there is a problem with the engine of the vehicle other than its starting system. STOP crank- ing the engine until the other problem has been found and cor- rected.

J.

CHARGE PERIOD

Determine the charge level of your battery with a hydrometer or electronic percent of charge tester. Determine the ampere hour rating of your battery. It may be on the battery information label. If the battery is rated in reserve capacity, convert to ampere hour rating using the following formula:

Ampere Hour rating

=

(Reserve Capacity) + 16

 

 

2

Example: AH rating

=

(168 Reserve Capapcity + 16

 

 

2

 

 

or AH = 100

Note: Reserve capacity is in minutes.

Use the following formula to determine the time of charge re- quired:

(AH x % of charge needed) divided by amp setting of the charger, times 1.25 = hours of charge

Example:

State of charge of the battery is 50%

Percent of charge needed is 100% - 50% = 50% (0.50 decimal)

Ampere rating of the battery is 100AH

Charger setting is

10 Amps

100 x 0.50 =

x

1.25

=

6.25 hours of charge needed

10

+

1.00

 

hour more if charging a deep

 

 

 

 

cycle battery

 

 

7.25

 

hours total for a deep cycle

 

 

 

 

battery.

A hydrometer reading of the specific gravity of the electrolyte (fluid) of the battery in good condition should be between 1.25 and 1.28.

When a battery reaches 80–85% of full charge, bubbles will appear on the surface of the fluid. As the battery nears full charge, bubbling will become more vigorous.

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Schumacher PS-8050, PS-3000, PS-5250, PS-2352 Engine Start, Charge Period, Ampere Hour rating, Example AH rating
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PS-8050, PS-5250, PS-2352, PS-3000 specifications

The Schumacher PS series stands out in the automotive equipment market, particularly for its advanced battery chargers and maintainers. Four notable models in this range are the PS-3000, PS-2352, PS-5250, and PS-8050, each offering distinct features and technologies tailored for a variety of user needs.

The Schumacher PS-3000 is designed for versatility and performance. It incorporates smart sensing technology that automatically detects voltage and adjusts the amperage to optimize charging. This model boasts a 3-amp automatic charger with a digital display that provides charging status and indicates the condition of the battery. Its compact design makes it highly portable, ideal for both home use and emergency situations.

Next, the PS-2352 model elevates functionality further. It's a fully automatic battery charger and maintainer specifically designed for both 6V and 12V lead-acid batteries. The PS-2352 utilizes microprocessor control to ensure precision in every charge cycle, which helps extend battery life. Moreover, it features an easy-to-read LED display that communicates battery status and charging progress, while its built-in safety protections guard against overcharging and reverse polarity.

The Schumacher PS-5250 model caters to higher capacity demands with its robust 6/12V charging capabilities. This model delivers a maximum of 5 amps of charging power and has a unique fast-charge feature for quickly restoring battery life. Its advanced float mode monitoring ensures that batteries remain charged without the risk of overcharge. The PS-5250's construction is durable and built to withstand the rigors of both professional and home use.

Lastly, the PS-8050 is the top of the line for heavy-duty applications. With a charging capability of up to 50 amps, this model is perfect for larger vehicles and industrial batteries. It features an onboard microprocessor for intelligent charging, which regulates the output to suit different battery types. Additionally, the PS-8050 is equipped with multiple safety features, including short-circuit protection and over-temperature prevention, ensuring safe usage even in demanding environments.

In summary, the Schumacher PS series effectively combines cutting-edge technology with user-friendly features across its lineup. From compact solutions like the PS-3000 to heavy-duty options such as the PS-8050, each model is designed to meet specific user requirements while ensuring the longevity and reliability of batteries. These models illustrate Schumacher's commitment to quality and innovation in automotive care.
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