Upgrade your IPS/UPS from lead-acid to lithium
Our best-selling line in Bangladesh. A YJC LiFePO4 pack drops into the same 12 V or 24 V IPS installation, roughly doubles usable backup hours, recharges in about an hour, and never needs water again. Modular 4S4P design lets a shop start small and grow.
Four models across 12.8 V and 25.6 V
Pouch LiFePO4 cells in an ABS case, IP65 sealed. Charge mode is CC/CV at 0.5 C to the recommended voltage, then constant voltage until current drops to ≤ 0.05 C.
| Parameter | YJC-LB12100 | YJC-LB12200 | YJC-LB25100 | YJC-LB25200 |
|---|---|---|---|---|
| Nominal voltage | 12.8 V | 12.8 V | 25.6 V | 25.6 V |
| Nominal capacity | 100 Ah | 200 Ah | 100 Ah | 200 Ah |
| Nominal energy | 1280 Wh | 2560 Wh | 2560 Wh | 5120 Wh |
| Weight | ≈ 10.8 kg | ≈ 17.8 kg | ≈ 20 kg | ≈ 35 kg |
| Dimensions (L×W×H) | 307 × 168 × 212 mm | 522 × 240 × 218 mm | 522 × 238 × 218 mm | 522 × 268 × 220 mm |
| Cell type | Pouch LiFePO4 | |||
| Case material | ABS (Acrylonitrile Butadiene Styrene) | |||
| IP rating | IP65 | |||
| Internal resistance | ≤ 20 mΩ | |||
| Self-discharge / month | < 3% | |||
| Recommended charge voltage | 14.6 V | 29.2 V | ||
| Standard charge current | 20 A | 40 A | 20 A | 40 A |
| Maximum charge current | 100 A | 200 A | 100 A | 200 A |
| Continuous discharge current | 100 A | 200 A | 100 A | 200 A |
| Discharge cut-off voltage | 10.0 V | 20.0 V | ||
| Charge temperature | 0 °C to 55 °C (32 °F to 131 °F), ≤ 60 ± 25% RH | |||
| Discharge temperature | −25 °C to 65 °C (−13 °F to 149 °F), ≤ 60 ± 25% RH | |||
| Storage temperature (>1 month) | 0 °C to 35 °C (32 °F to 95 °F) | |||
| Storage temperature (≤1 month) | −20 °C to 45 °C (−4 °F to 113 °F) | |||
Specifications subject to change with product revision. Contact us for the current datasheet of each model.
The comparison that decides the sale
Lead-acid
- Limited usable capacity — around 50% depth of discharge
- High maintenance — watering and cleaning required
- Bulky and heavy — hard to transport and install
- Safety risks — acid leaks and lead pollution
- Higher true cost — hidden expenses pile up
YJC LiFePO4
- Consistent performance — 2× extended operating hours
- Maintenance-free — no watering, no corrosion
- Compact and lightweight — easy to move and install
- High safety — stable chemistry, no leakage
- Lower lifetime cost — real savings for users
Built around how Bangladesh actually loses power
Load shedding comes in short, repeated bursts. A battery that can't refill between outages is useless, which is exactly where lead-acid falls down.
- Best partner for IPS/UPS — longer backup with stable output in every outage
- Fast recharge — ready again in about an hour for the next power cut
- Flexible power — connect with a 12 V inverter to run home appliances anytime
- IP65 protection keeps output stable in heat, humidity and dust
- Modular 4S4P design grows with household or small-business demand
- Lead-free and acid-free chemistry — safer for families and the environment
Model gallery
Work out what your IPS needs
Share your inverter rating, the load you want to keep running and the backup hours you're aiming for. We'll size the bank, quote by model and tell you what's in stock in Dhaka today.