12V 10A/20A Waterproof Lithium Battery Charger
This 12V waterproof lithium battery charger delivers a stable 14.6V output using a multi-stage charging algorithm tailored for LiFePO4 batteries. Available in 10A and 20A, it features adaptive thermal control, dielectric isolation, and an IP65-rated shell with auto-recovery—ideal for marine, RV, and off-grid use in harsh environments.
Choose your ideal match:
- For a 12V 50Ah lithium battery, the 12v 10a lithium battery charger is recommended and takes about 5 hours to fully charge.
- For a 12V 100Ah lithium battery, the 12v 20a lithium battery charger is ideal and also completes charging in around 5 hours.
Features:
- Graphene-Speed Charging: Ultra-fast charge via graphene-layered ion acceleration—50% quicker power-up.
- Smart Tri-Stage Control: Precision-tuned CC/CV logic maximizes charge depth and battery health.
- 0V BMS Wake-Up: Pulse Ignition™ tech revives over-discharged LiFePO4 from dead-zero volts.
- Nano-Thermal Protection: Built-in ceramic shielding defends against overheating and reverse polarity.
- GaN Boost Efficiency: Gallium Nitride modules increase conversion by 30%, reducing heat loss.
- IP65 Sealed Armor: Marine-grade aluminum with nano-coating for full water and dust resistance.
- 10A/20A Dual Output: Switchable output adapts to small and large battery setups effortlessly.
- AeroCool System: Axial-fan cooling keeps it running strong under high current loads.
Reliable. Fast. Safe.
Specifications Of 12V 10A Waterproof Lithium Battery Charger
| CHARACTERISTICS | PARAMETERS | |
| BASIC | Charger Type | LiFePO4 |
| Output Voltage | 14.6Vdc | |
| Output Current | 10A | |
| Max Input Current | 2.5A | |
| Input Voltage Range | AC 100V to 240V; 47Hz to 63Hz | |
| Lithium Battery Activation | YES | |
| LED Indicator | YES | |
| PROTECTION | Output Short-Circuit | YES |
| Output Over-Voltage | YES | |
| Output Over-Current | YES | |
| Reverse Polarity Connection | YES | |
| Over Temperature | YES | |
| TEMPERATURE | Operating Temperature | -10℃ to 40℃ / 14℉ to 104℉ |
| Storage Temperature | -40℃ to 70℃ / -40℉ to 158℉ | |
| Cooling method | By natural air | |
| OTHERS | Dimensions | 145.8*64.8*31.0mm/ 5.74*2.55*1.22 in |
| Weight Approx. | 0.6 KG/ 1.32 lbs | |
| Warranty | 2 Years | |
| Certifications | CE, EMC, UL | |
| Housing Material | ABS | |
| Protection Class | IP65 | |
| Input connector | UK/US/EU/Australian Plug | |
| Output connector | XT60/M6 Terminal/3-pin female plug | |
Specifications Of 12V 20A Waterproof Lithium Battery Charger
| CHARACTERISTICS | PARAMETERS | |
| BASIC | Charger Type | LiFePO4 |
| Output Voltage | 14.6Vdc | |
| Output Current | 20A | |
| Max Input Current | 5A | |
| Input Voltage Range | AC 100V to 240V; 47Hz to 63Hz | |
| Lithium Battery Activation | YES | |
| LED Indicator | YES | |
| PROTECTION | Output Short-Circuit | YES |
| Output Over-Voltage | YES | |
| Output Over-Current | YES | |
| Reverse Polarity Connection | YES | |
| Over Temperature | YES | |
| TEMPERATURE | Operating Temperature | -10℃ to 40℃ / 14℉ to 104℉ |
| Storage Temperature | -40℃ to 70℃ / -40℉ to 158℉ | |
| Cooling method | Fan cooling | |
| OTHERS | Dimensions | 203*100*54mm/ 7.99*3.94*2.13 in |
| Weight Approx. | 1.3 KG/ 2.87 lbs | |
| Warranty | 2 Years | |
| Certifications | CE, EMC, UL | |
| Housing Material | Aluminum | |
| Protection Class | IP65 | |
| Input connector | UK/US/EU/Australian Plug | |
| Output connector | XT60/M6 Terminal/3-pin female plug | |
Fast & Safe Charging for 12V Lithium Batteries
Charge 2× faster with smart tech, 4-layer safety, 30% energy savings, and broad compatibility. Durable, portable, and built to last.

Smart Charging for 12V Lithium Batteries
Get the best performance with the 12V Lithium Battery Charger, featuring adaptive charging that protects and prolongs battery life.

Battery Charger for Lithium Batteries That Works Smarter
Looking for a reliable battery charger for lithium batteries? The MANLY 12V 10A/20A lithium battery charger delivers 2× faster charging with smart CC/CV control and 4-layer safety. It’s built to protect your batteries, boost efficiency by 30%, and power everything from solar systems to marine and RV setups. Compact, durable, and trusted by pros.

China 12V 10A/20A Lithium Battery Charger | Fast, Safe, Durable
Engineered by MANLY with advanced technology and strict quality standards, this 12V 10A/20A lithium battery charger delivers smart, efficient, and safe charging. With 30% higher energy conversion, real-time adaptive protection, and a rugged metal housing, it’s a compact solution built to last. Proudly made in China, trusted by professionals across solar, RV, and industrial sectors.
Delivery, Packing & Services
Why choose MANLY:
- Many years specialized in lithium batteries, lead of LiFePO4 battery
- Professional design, research, and development, quality inspection team
- OEM/ODM custom is acceptable without MOQ Request
- Made of powerful industrial Grade original factory 100ah lifepo4 cell
- Modern automatic production line
Packing & Delivery:
Packaging:
Double-layer packing box:
1. Inner packaging plus blister tray to fix the LiFePO4 100ah Battery
2. Add an inner packaging carton
3. Use the double-layer thick cardboard UN carton packaging
4. The outer box is attached with anti-extrusion, waterproof and fireproof labels
5. Reinforce with PVC film
Shipping:
1) Shipping time for bulk orders: 30-45 days after receiving the deposit.
2) Sample order is supposed to be shipped within 7 days, bulk order is suggested to ship by sea, we could supply forwarder service if you need.
Our Services:
OEM & ODM can customize according to your request :
- Battery voltage, capacity, and dimension.
- LiFePO4 BMS charging and discharging current.
- Connector, case, and wire.
- Your own logo eg: silk print.
After-sales service is available :
- Respond in 24 hours to any inquiry on our product.
- Take action quickly for a normal customer’s claim within 12 hours.
- Good after-sales service: We offer 10 years quality warranty for lifepo4 batteries 12.8V 20Ah/50Ah/100Ah/200Ah/500Ah/1000Ah/…
- One by one tested before shipment.
FAQ:
1: Is MANLY Battery a trading company or factory?
R: MANLY is a company with its own factory, which integrates research, development, production, and sales.
2: Can I have a sample order?
R: Of course, the sample test order is always available.
3: What’s your certification?
Re: We have CE/FCC/ROHS/PSE/UN38.3/MSDS/BSCI certifications by TUV Lab.
4: Do you support customization?
R: Of course, we support customization, you put forward your needs, and we will try our best to do it.
5: What’s your MOQ?
R: According to your battery voltage and capacity.
6: What payment terms we can accept?
R: TT/Paypal/West Union/etc.
7: How Long Is The Lead Time?
R: Sample is 25-30 working days; mass production is 15~20 working days – since the deposit was received and samples confirmed.
8: How do you ship the goods and how long does it take to arrive?
R: We can supply the UPS, DHL, EMS, TNT express, and sea/air services for shipping choices: we will calculate the best.
8: How is the continuous discharge current calculated?
R: Generally based on the BMS board. refer to the specification , generally 1C , C = current / capacity.
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