Can I weld lithium batteries myself?
No, you shouldn’t.
Welding a lithium battery pack is extremely risky. High heat from welding can damage the internal separator and electrolyte or break the sealed housing. This often leads to leaks, short circuits, or even thermal runaway.
In many cases, you won’t see problems right away. But after some cycles, the battery may start leaking or fail without warning.
If you need to connect cells, only certified technicians with lithium battery experience should use a spot welder under controlled temperatures. Never use a soldering iron. And always remove the battery management system (BMS) before any work.
Can I use any charger for NCM or LiFePO4 batteries?
No, you need a charger made specifically for that battery chemistry.
NCM lithium batteries require a charging voltage around 4.2 volts per cell. LiFePO4 batteries charge at 3.6–3.8 volts per cell. Using the wrong charger can overcharge the pack, reduce cycle life, or even start a fire.
Always check your battery specs and use the recommended charger. This is essential whether you’re charging a 64V LiFePO4 battery for solar storage or a smaller NCM battery for e-bikes.
Is it safe to heat or throw away lithium batteries?
Never heat or toss lithium batteries in the trash.
Heating a battery above 60°C can cause the separator to shrink. This creates a short circuit inside the cell. The electrolyte can vaporize, build pressure, and rupture the casing.
If you discard a battery improperly, heavy metals like nickel and cobalt can leak into soil and groundwater.
How to dispose safely:
Take used batteries to a certified recycling center or a battery collection box in your community. Many regions require this under lithium battery disposal regulations.
Can I force discharge a lithium battery?
Absolutely not.
Forcing a deep discharge drops voltage below zero, which dissolves copper current collectors. This process forms metallic dendrites that puncture the separator. The electrolyte also breaks down and releases flammable gases like hydrogen.
This can lead to swelling, smoke, fire, or even an explosion.
Is it safe to mix lithium batteries with other types?
No, mixing batteries is dangerous.
Different chemistries—like lithium ion, alkaline, or NiMH—have different voltage profiles. Connecting them can cause higher-voltage batteries to charge lower ones in reverse.
Also, combining new and used cells accelerates aging and increases leakage risk. In worst cases, you may get overheating, swelling, or a fire.
Can I disassemble or crush a lithium battery?
Never attempt this.
Opening a lithium battery exposes the electrolyte. Contact with moisture forms hydrofluoric acid, which is highly toxic. Metal tools can short the electrodes.
Crushing or deforming the battery by more than 10% often breaks the separator and creates an instant internal short circuit. This is a leading cause of battery fires.
What if I don’t use the battery for a long time? Can I leave it inside the device?
We recommend removing the battery before storage.
Even when your equipment is off, standby current slowly drains the battery. If voltage drops below 2.5 volts per cell, it can cause permanent damage.
How to store properly:
Keep battery at 40–60% charge.
Store below 77℉(25°C) in a dry area.
Check voltage every 3 months to prevent deep discharge.
This helps preserve the battery’s long cycle life and ensures it’s ready when you need it.
What is a LiFePO4 battery?
A LiFePO4 battery, or lithium iron phosphate battery, is a type of rechargeable lithium ion battery that uses lithium iron phosphate as its cathode material. This chemistry has an olivine crystal structure and a nominal voltage of 3.2 volts per cell.
LiFePO4 batteries stand out for their high safety rating. They can handle temperatures up to 500°C without thermal breakdown. They also deliver a long cycle life—often over 3,000 full charge and discharge cycles. Unlike NCM batteries, LiFePO4 cells don’t rely on cobalt or nickel, making them more sustainable and easier to recycle.
What are the advantages of LiFePO4 batteries?
Compared to other lithium ion chemistries, LiFePO4 packs offer several clear benefits:
Outstanding safety: They stay stable at high temperatures. Even if punctured or short-circuited, they are far less likely to catch fire.
Long service life: A typical deep cycle LiFePO4 battery can deliver 2,000–5,000 cycles while keeping over 80% of its capacity. That’s about 2–3 times longer than most NCM battery packs.
Cost efficiency: The materials—iron and phosphate—are more affordable and have stable prices. Overall, LiFePO4 batteries often cost 20–30% less than NCM batteries of the same capacity.
No memory effect: You can charge them anytime without fully draining the battery first.
These qualities make them a smart choice for buyers who need a safe, high capacity lithium battery that’s low maintenance and built to last.
recent article:LiFePO4 vs NCM Battery: Which One is Right for You
Where are LiFePO4 batteries commonly used?
You’ll find LiFePO4 batteries in many applications where safety and long-term performance matter:
Electric vehicles: They power commercial EVs, e-bikes, and lower-cost passenger cars like the Tesla Model 3 Standard Range and BYD models. Many fleets choose them to replace lead acid batteries because they deliver stable voltage and long life.
Energy storage systems: LiFePO4 has become the top choice for solar storage, grid balancing, and home backup systems. Today, more than half of all energy storage battery shipments worldwide use lithium iron phosphate chemistry.
Electric tools and small vehicles: From cordless drills to golf carts, these batteries offer reliable power for equipment that gets charged and discharged daily.
If you’re planning to upgrade to a lithium battery pack or replace lead acid batteries in solar storage or RV power setups, LiFePO4 batteries provide a strong balance of performance and safety.
What is an NCM lithium ion battery?
An NCM battery is a type of lithium ion battery that uses a mix of nickel, cobalt, and manganese in the cathode. This chemistry is sometimes called a ternary lithium battery. You might see formulas like NCM523 or NCM811—those numbers show the ratio of nickel, cobalt, and manganese.
Here’s how it works:
During discharge: Lithium ions leave the graphite anode, travel through the electrolyte, and move into the NCM cathode.
During charging: The ions return to the anode and store energy until you need it again.
Because of this structure, NCM batteries deliver high power in a compact size.
What are the main benefits of NCM batteries?
NCM batteries stand out for their high energy density. Some cells can reach 200–300 Wh/kg. That means you get longer runtime without adding bulk.
Here’s why many customers choose NCM over other chemistries:
Excellent low-temperature performance: Even at –20°C, an NCM battery keeps over 70% of its rated capacity. That’s better than many LiFePO4 batteries.
Stable voltage platform: The discharge curve stays flat. You can predict remaining charge more accurately.
Lightweight design: Compared to lead acid batteries, NCM lithium batteries weigh far less and deliver higher voltage. That makes them ideal for electric vehicle and engine start applications.
If you’re looking to replace lead acid batteries with lithium or want a high capacity lithium battery for demanding jobs, NCM is worth considering.
Where can you use NCM lithium ion batteries?
NCM cells are popular across many industries and applications:
Personal electric vehicles: Electric scooters, e-bikes, and three-wheelers rely on NCM packs for solid range and performance.
Industrial vehicles: Golf carts, forklifts, street cleaners, and tourist shuttles often use NCM batteries to handle frequent starts and stops.
Passenger EVs: Leading brands like Tesla and BYD have adopted NCM packs in high-end models.
Energy storage systems: While NCM can be used for solar battery storage and home backup, these setups need careful thermal management to ensure safe operation.
If you’re evaluating lithium battery compatibility for your equipment or planning to upgrade to a lithium battery pack, NCM offers an appealing mix of energy density and reliability.
Should I connect my lithium batteries in series or parallel?
It depends on what your system needs.
Series connections increase the voltage.
Parallel connections boost the capacity (Ah).
If you’re running a high-voltage system—like a 48V inverter setup—you’ll want series wiring. If you need longer runtime, go with parallel.
At Anengji, our lithium battery packs are designed to handle both. You can wire them in series, parallel, or a combo of both, depending on what your inverter, RV, or solar rig needs.
Should I go with lead acid or lithium?
Both work. But they’re built for different priorities.
Lead acid is cheaper up front. It’s heavy, bulky, and doesn’t last very long.
Lithium—like our LiFePO4 or NCM models—is lighter, charges faster, lasts longer, and doesn’t need maintenance.
If you’re powering a golf cart, RV, or off-grid cabin and want to keep weight down and runtime up, replacing lead acid batteries with lithium is a solid move.
How much energy can a 12V 100Ah lithium battery store?
Simple math:
12V × 100Ah = 1,200Wh (or 1.2kWh)
So one battery can power a 1,200W load for roughly an hour. Stack four, and you’ve got 4.8kWh of usable energy. That’s enough to run lights, a fridge, and a few small appliances in an RV or tiny home.
Just keep in mind: more capacity (Ah) = longer runtime, but also more weight and cost. Choose based on your actual needs.
How do I check battery status?
Just open the app.
Most of our batteries include Bluetooth monitoring. You can see your State of Charge (SOC), voltage, current, and temperature—all in real time. No guesswork, no multimeters.
Some models also support external display screens or custom-built remote monitors.
Are lithium batteries safe?
Yes—and we go the extra mile to make sure of it.
Our batteries are tested for:
Drops
Crush and puncture
Overcharging
Short circuits
Extreme temperatures
Impact and vibration
Each unit includes a smart Battery Management System (BMS) that shuts things down if anything goes out of range—voltage, current, temperature, you name it. We also offer optional CAN/RS485 protocols, displays, GPS modules, and more.
How reliable are Anengji’s lithium battery products?
We take quality seriously. Every lithium battery we make goes through strict quality checks and meets key international certifications, including CE, UL, TLC, IEC, ISO, and UN38.3. Whether you’re buying a LiFePO4 battery for solar storage or a deep cycle pack for an RV, you’re getting a product built to last—with the data to prove it.
As a trusted lithium battery manufacturer, we’ve served OEMs, energy integrators, and electric vehicle suppliers around the world. Our factory team combines strong R&D capabilities with full compliance to lithium battery manufacturing standards.
Can I customize a lithium battery pack?
Absolutely. If you’re working on a specific project and need a tailored power solution, we’re here to help. Just tell our team what you need—whether it’s a custom size, housing design, cold-weather self-heating, or BMS protocol support like CAN or UART.
We specialize in custom lithium battery packs for a wide range of industries—from golf carts and electric vehicles to solar storage systems and backup power. Every design is engineered with your performance goals and safety standards in mind.
How are lithium batteries shipped?
Shipping lithium batteries—especially large-capacity ones—isn’t like shipping regular goods. All our batteries comply with UN38.3 certification and come with full MSDS documentation.
Each battery is packaged with care using anti-static foam, terminal caps, and secure boxing to meet lithium battery shipping regulations. For high-capacity units (300Wh+), air freight may require additional carrier approval due to transport restrictions. When total weight exceeds the limits for parcel shipping, we recommend sea freight to lower costs.
Our team handles the paperwork, safety labeling, and classification steps so you don’t have to. If you have questions about safe lithium battery packaging, just reach out.
What’s the typical lead time for delivery?
Fast turnaround is part of our promise.
Sample orders and small packs usually ship within 1–2 weeks after payment.
Bulk orders typically require 3–5 weeks, depending on your quantity and whether customization is needed.
Shipping methods:
For light shipments, we use reliable couriers like UPS, FedEx, or DHL.
For shipments over 50kg, sea freight is more cost-effective. Just let us know your nearest port and we’ll take care of the rest.
Whether you’re looking to buy lithium batteries online or need guidance on OEM battery sourcing, we’re ready to support your timeline and budget.
If you’d like a quote or more technical details, just reach out to our team. We’d be glad to help you find a battery solution you can rely on.
AnengJi is a trusted global supplier of lithium batteries, delivering reliable energy solutions for electric bikes, scooters,Electric rickshaw ,golf carts, RVs, EVs, and energy storage systems. With nearly 4 million batteries produced monthly, we offer lithium battery packs and cells tailored for industrial, commercial, and residential use—powering mobility and backup with high efficiency and performance.