Description

QA450B 450 W Smart Waterproof Battery Charger — 12 V to 48 V Platforms

✅ 450 W Output | ✅ ≥ 92 % Efficiency · IP65 | ✅ 4 Voltage Platforms · 5 Models · 12 V – 48 V | ✅ LiFePO4 · Li-ion · Lead-Acid | ✅ 2-Year Warranty · ISO 9001

Technical Specifications

Parameter	12 V Platform	24 V Platform (12 A)	24 V Platform (15 A)	36 V Platform	48 V Platform
DC Output
Model	QA450B-12V15A	QA450B-24V12A	QA450B-24V15A	QA450B-36V10A	QA450B-48V06A
Rated output power	450 W
Rated battery voltage	12 V	24 V	24 V	36 V	48 V
Output voltage range	12–17 V	24–34 V	24–34 V	30–44 V	39–60 V
Max output current	15 A	12 A	15 A	10 A	6 A
CV Charge Voltage & Termination
CV charge voltage — lead-acid	14.7 V	29.4 V	29.4 V	44.1 V	58.8 V
CV charge voltage — Li-ion	12.6 V	29.4 V	29.4 V	42.0 V	54.6 V
CV charge voltage — LiFePO4	14.6 V	29.2 V	29.2 V	43.8 V	58.4 V
Charge cut-off current (Li)	1.5 A	1.5 A	1.5 A	1.0 A	1.0 A
AC Input & Efficiency
AC input voltage range	90–132 V & 180–264 V AC, 45–65 Hz
AC input max current	≤ 4.0 A @ 220 V AC · ≤ 6.9 A @ 120 V AC
Efficiency	≥ 92 %
Noise	≤ 45 dB
Protection & Compatibility
Battery compatibility	LiFePO4, Li-ion and lead-acid battery packs (CC/CV charging profile)
Protection functions	Over-voltage, over-charging, over-current, short-circuit, over-heat and reverse-polarity protection; IP65 protection level
Physical & Application
Dimensions (L × W × H)	176 × 124.5 × 59 mm
Cable lengths	AC input cable 1000 mm · DC output cable 1000 mm + 450 mm pigtail
AC plug options	EU, AU, US, UK, JP, Italy, Brazil, China and more on request
Net weight	1.7 kg
Application	Golf cart, floor scrubber / sweeper, electric boat, electric motorcycle / scooter, electric forklift and electric tool battery packs

Product Details

XCONTACTOR QA450B 450W waterproof battery charger — dimensions 176 x 124.5 x 59 mm, AC and DC cable lengths 1000 mm / 450 mm, net weight 1.7 kg

QA450B 450W charger with 29.2 V 100 Ah battery — over-voltage, over-charging, short-circuit, over-heat and reverse-polarity protection, 2-year warranty, ISO 9001

QA450B 450W charger — how to connect with Anderson to M8 terminal connector, 3-step guide

QA450B charger specification table — model variants QA450B-12V15A to QA450B-48V06A, output voltage ranges, max output current, CV charge voltages for lead-acid, Li-ion and LiFePO4, cut-off currents, efficiency and IP65 protection level

Ordering & Factory Info

Item	Detail
Brand / Origin	XCONTACTOR · China
Model variants	QA450B-12V15A / -24V12A / -24V15A / -36V10A / -48V06A (order by battery platform)
MOQ & Lead Time	Sample order accepted · typically 1–2 weeks (confirm with sales)
Payment & Warranty	T/T, PayPal, Trade Assurance · 2 years warranty