digilog.pk is Pakistan's leading source for lithium-ion cells, LiPo packs, NiMH batteries, BMS modules, TP4056 charger boards, battery holders, and multi-chemistry chargers. Whether you're building a DIY power bank, e-bike battery pack, solar storage system, or portable IoT device, we stock the cells, protection boards, and chargers you need — all in one place with nationwide delivery.

Why Source Batteries from digilog.pk?

• Genuine cells — 18650, 21700, and LiPo packs from verified suppliers, not counterfeits
• Complete ecosystem — cells + BMS + charger + holder all available together
• BMS included options — protected 18650 cells with built-in PCB for safe single-cell use
• LiFePO4 available — safer chemistry for solar storage and e-bike applications
• Fast delivery — TCS overnight to Karachi, Lahore, Islamabad, Peshawar

Battery Types

• 18650 Li-ion cells — 3.7V, 2000–3500mAh; most popular for DIY packs and power banks
• 21700 Li-ion cells — higher capacity; used in high-drain devices and e-bike packs
• LiPo packs — flat, lightweight; for drones, RC models, and slim portable devices
• LiFePO4 (LFP) — 3.2V nominal; safer, longer cycle life; for solar and EV applications
• NiMH AA/AAA — rechargeable replacements for consumer devices
• Lead-acid (SLA) — 6V/12V; for UPS, alarm systems, and backup power

Charging Modules

• TP4056 — 1A single-cell Li-ion charger with over-discharge protection
• CN3791 — solar-input MPPT charger for single-cell Li-ion from solar panel
• Multi-cell balance chargers — for 2S–6S LiPo packs used in drones and RC

Related Categories

Protect your battery packs with BMS boards from BMS - Battery Management Systems. For solar charging applications see Solar & Inverter. Power your electronics cleanly using Power Supplies & Adapters. For e-bike specific BMS see BMS for E-Bike & Electric Scooter.

Common Applications

• DIY power banks — 18650 cells + TP4056 + boost converter + USB out
• E-bike battery packs — 13S 18650 pack with 48V BMS — see E-Bike BMS
• Solar storage — LiFePO4 cells with DALY BMS — see DALY BMS
• Drone power — LiPo 3S/4S packs with C-rated discharge
• IoT sensor nodes — 18650 + TP4056 + ESP32 deep sleep for months of autonomy

How to Choose

1. Chemistry — Li-ion for energy density; LiFePO4 for safety and cycle life; NiMH for simple consumer use
2. Capacity (mAh) — higher is better; verify it's genuine rated capacity
3. Discharge rate (C) — high-drain motors need 10C+ LiPo; IoT sensors need only 0.5C
4. Series/parallel count — determines pack voltage and capacity; always add BMS

Learning Resources

• Battery University — Selection Criteria — chemistry comparison and application guide
• 18650 Battery Tutorial — Random Nerd Tutorials — wiring 18650 cells safely for Arduino projects
• LiFePO4 Battery — Wikipedia — technical background on LFP chemistry and safety
• DIY 18650 Battery Pack Build Guide — YouTube — spot-welding, BMS wiring, and safety practices

Need protection boards for your battery pack? Browse BMS - Battery Management Systems for all cell counts. For bulk cell or battery pack procurement contact info@digilog.pk.