Your Browsing History
- Free 30-day Returns
$243.78
Meet Your Seller
BT521 4-in-1 Car Battery Charger, Tester, Maintainer and Desulfator for 12V Lead-Acid Batteries, 5A Smart Trickle Charger with Overcharge Protection & Temperature Compensation, LCD Display
- BATTERY MAINTENANCE MADE EASY: BT521 offers a complete solution for all your battery management needs by combining testing, charging, desulfation, and long-term care into a single, easy-to-use tool. This all-in-one device helps ensure your battery's health without the complexity of managing multiple tools
- TEST FIRST - ENSURE BATTERY HEALTH: To ensure effective charging and save your time and cost, it is crucial to first assess the battery's health using the built-in tester before charging. It helps you determine whether the battery needs charging or is beyond repair and requires replacement, thereby supporting you in making the right decision for your battery
+
+
Overview
Reviews
Any questions? Our AI beta will help you find out quickly.
Try me now
BATTERY DESULFATOR RESTORE LOST CAPACITY: Addressing the major issue of sulfation that degrades battery performanceespecially in idle unitsthe desulfation mode works to break down the harmful sulfate crystals inside the battery, thereby restoring its lost capacity. It is ideal for reviving batteries that have been sitting idle or are showing signs of poor performance
SMART CHARGING WITH 8-STAGE MODE FOR SAFE CHARGING: To ensure a safe and efficient charging process, this product features a smart charging system. It automatically adjusts charging parameters based on the battery's actual condition and includes a Trickle Maintenance Mode to deliver a smooth and secure charge. This effectively prevents overcharging and helps preserve the long-term health of your battery, making it ideal for both regular use and extended storage
LONG-TERM STORAGE MODE PROTECT YOUR BATTERY: To prevent battery degradation during extended vehicle storage, our charger automatically switches to Long-Term Storage Mode after a full charge. It then maintains an optimal charge level without overcharging, ensuring your battery is always ready when needed.
WIDE COMPATIBILITY & SAFETY FEATURES: This charger is a versatile 12V smart charger, compatible with all lead-acid batteries including AGM, GEL, and SLA. Equipped with multiple safety features such as reverse polarity, overcharge, and short-circuit protection, it guarantees safe and reliable charging every time
TRUE PLUG-&-PLAY: No complex setup or calibration needed. Just connect to power and clamp electrodes for 3-second auto-start. The LCD display shows real-time feedback on your batterys health, charge status, and voltage, making battery care both simple and reliable. Simplify your battery maintenance process
SMART CHARGING WITH 8-STAGE MODE FOR SAFE CHARGING: To ensure a safe and efficient charging process, this product features a smart charging system. It automatically adjusts charging parameters based on the battery's actual condition and includes a Trickle Maintenance Mode to deliver a smooth and secure charge. This effectively prevents overcharging and helps preserve the long-term health of your battery, making it ideal for both regular use and extended storage
LONG-TERM STORAGE MODE PROTECT YOUR BATTERY: To prevent battery degradation during extended vehicle storage, our charger automatically switches to Long-Term Storage Mode after a full charge. It then maintains an optimal charge level without overcharging, ensuring your battery is always ready when needed.
WIDE COMPATIBILITY & SAFETY FEATURES: This charger is a versatile 12V smart charger, compatible with all lead-acid batteries including AGM, GEL, and SLA. Equipped with multiple safety features such as reverse polarity, overcharge, and short-circuit protection, it guarantees safe and reliable charging every time
TRUE PLUG-&-PLAY: No complex setup or calibration needed. Just connect to power and clamp electrodes for 3-second auto-start. The LCD display shows real-time feedback on your batterys health, charge status, and voltage, making battery care both simple and reliable. Simplify your battery maintenance process
Warranty & Returns
Warranty, Returns, And Additional Information
Warranty
- Please contact the Seller directly for warranty information. Warranty information may also be found on the Manufacturer's website.
- CONTACT
Return Policies
- Return for refund within: 30 days
- Return for replacement within: 30 days
- This item is covered by Halo Electronics Return Policy
Manufacturer Contact Info
- For a directory of all our manufacturers, please click below.
- Manufacturers Directory
LOADING...