HOT DD30CRTA Car, Lead Acid Battery, Charger 12V Charging, Device 3A Current 1-, 10000AH UPS Solar, Power Module, （With Terminal）

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SKU: rz24320354 Category: Battery Protection Board

Description

The DD30CRTA is a PWM switch-mode battery charger controller for a 12V lead-acid battery in a small package using a few external components. The DD30CRTA is specially designed for charging 12V lead-acid battery with trickle charge, constant current charge, over-charge and float charge mode. In over-charge and float charge mode, the regulation voltage is internally set.

The constant charge current is programmable with a single sense resistor.

Deeply discharged batteries are automatically trickle charged at 17.5% of the programmed constant charge current until the cell voltage exceeds 75% of the regulation voltage in over-charge mode. The over-charge is terminated once the charging current drops to 38% of the constant charge current, then DD30CRTA will enter float charge mode. A new charge cycle automatically restarts if the battery voltage falls below 83.95% of the over-charge voltage in float-charge mode. DD30CRTA will automatically enter sleep mode when the input voltage is lower than the battery voltage.

Other features include under-voltage lockout and indication, etc.

1: The Regulation Voltage in Over Voltage Mode and Float Charge Mode

The regulation voltage VOC at BAT pin in overcharge mode is set at 14.8V(Typical) with ±1.5% accuracy.

In float charge mode, the regulation voltage VFLOAT at BAT pin is 91.57% of that in overcharge mode, which is 13.55V(Typical).

Trickle Charge Mode At the beginning of a charge cycle, if the battery voltage is below 75%×VOC, the charger goes into trickle

charge mode with the charge current set at about 17.5% of the constant current.

2: End-of-Over Charge Current

When the battery voltage approaches the over-charge voltage, the charger goes into the overcharge mode. In

overcharge mode, the charge current start to decrease and when the charge current drops to 38% of constant

charge current, the charger goes into float-charge mode.

3: Float Charge Mode

After the overvoltage charge is terminated, the charger goes into float charge mode. In float charge mode, the

battery voltage is regulated to 91.57%×VOC, namely 13.55V(Typical). Float charge mode can compensate for

the loss of battery power due to self-discharge or external loading.

4: Automatic Battery Recharge

In float mode, if both the battery and the input power supply (wall adapter) are present, a new charge cycle will

begin if the battery voltage drops below 83.95%×VOC due to self-discharge or external loading.

A new charge cycle can also be started manually by plugging off the input supply and reapplying it.

Application:

Car battery charging
Solar battery charging
Loudspeaker
Lead-Acid Battery Charger
Electric Bicycle Charger
UPS
Portable Industrial and Medical Equipment
Standalone Battery Chargers

Features:

Fixed Over-Charge Voltage
Overcurrent protection
Automatic Conditioning of Deeply Discharged Batteries
Automatic Recharge
Charger Indication
Battery Overvoltage Protection
Suitable for 1-10000AH 12V Lead-Acid Battery charger

Package Includes:

1 x HOT DD30CRTA Lead Acid Battery Charger 12V Charging Device 3A

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Shipping & Delivery

Shipping and Delivery Policy

1. Shipping Process:

Orders are processed within 1-2 business days after payment confirmation.
Delivery time varies based on location and selected shipping method, typically ranging between 3-7 business days.
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Shipping charges are calculated at checkout based on the delivery location and package weight.
Free shipping may be available for orders above a specified amount, as mentioned on our website.

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We are not responsible for delivery failures due to incorrect or incomplete address details provided by the customer.

5. Delivery Issues:

If a package is delayed, lost, or damaged during transit, please contact our support team immediately.
Claims for lost or damaged items must be reported within 48 hours of delivery.

6. No Return Policy for Opened/Soldered Products:

We do not accept returns for products that have been opened, used, or soldered.
Ensure you verify product compatibility before purchase, as returns will only be accepted for unopened and unused items in their original packaging.

7. Refund Policy:

Refunds will be issued only for canceled orders before shipment or wrong/damaged items received (subject to investigation).
No refunds or replacements for products that have been tampered with, soldered, or physically damaged by the customer.

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