Uttam Energy Solutions LLP

Safety Musts Never short the terminals Don’t overcharge or overdischarge Always use a BMS or protection circuit Don’t puncture, crush, or heat For packs: match cells by voltage and capacity.

A Lithium-Ion (Li-ion) battery pack is a collection of lithium-ion cells assembled together to provide a desired voltage and capacity. They’re commonly used in: Electric vehicles (EVs) Laptops & smartphones Power tools Solar energy storage Drones & RC models

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Charging Tips

• Use a LiFePO₄-specific charger (not standard lead-acid or lithium-ion).

• Charge at 14.4V typically; float not required (but some float at 13.6V).

• Max recommended charge rate: 0.5C to 1C (i.e., 50A–100A max).

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 Safety Must-Knows

• Never overcharge (above 4.2V/cell) or over-discharge (below 2.5V/cell)

• Don’t short-circuit the pack

• Always balance cells — this is where a smart BMS shines

• Avoid puncturing or overheating

• Store at 40–60% charge for long-term storage

We are engaged in offering 60V 24Ah Lithium Ion Battery Pack to our clients. Our range of all products is widely appreciated by our clients.

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We are engaged in offering 60V 40Ah Lithium Ion Battery Pack to our clients. Our range of all products is widely appreciated by our clients.

We are engaged in offering 48V 24Ah Lithium Ion Battery Pack to our clients. Our range of all products is widely appreciated by our clients.

We are engaged in offering 48V 36Ah Lithium Ion Battery Pack to our clients. Our range of all products is widely appreciated by our clients.

We are engaged in offering 60V 40Ah Lithium Ion Battery Pack to our clients. Our range of all products is widely appreciated by our clients.

We are engaged in offering 60V 31.2Ah Lithium Ion Battery Pack to our clients. Our range of all products is widely appreciated by our clients.

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AA Lithium (Non-Rechargeable)

• Chemistry: Lithium Iron Disulfide (LiFeS₂)

• Voltage: ~1.5V

• Common Brand: Energizer Ultimate Lithium

• Pros: Long shelf life (~10 years), great for high-drain devices, performs well in cold temps

• Cons: Not rechargeable

Charging a Li-ion Pack

• CC/CV charging method (Constant Current / Constant Voltage)

• For a 4S pack, charger output should be 16.8V

• Charger must match chemistry, voltage, and current specs

• Always use a BMS to prevent overcharging

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Protected

• True lithium-ion cell in AA size.

• Voltage: 3.6V–4.2V, not safe for standard AA devices unless specifically designed for higher voltage.

• Often labeled as 14500 (14mm diameter, 50mm length).

• Use with caution — these can damage devices meant for 1.5V!

A Lithium Iron Phosphate battery is a type of lithium-ion battery that uses LiFePO₄ as the cathode material. It’s known for exceptional safety, long life, and thermal stability, making it super popular for:.

• Solar power storage

• RVs, marine, and off-grid setups

• Electric bikes & scooters

• Backup power (UPS systems)

• Electric vehicles (especially buses and trucks)

Typical Specs

Voltage per cell: 3.6V or 3.7V nominal (4.2V max when fully charged)

Capacity: Varies widely (e.g., 2000mAh to 5000mAh per cell)

Cycle life: 300–1000+ full charge cycles

Charging method: Constant Current / Constant Voltage (CC/CV)