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Lead-to-lithium replacement battery, top angle view

Product · Technical data

Lead-to-Lithium Battery

A drop-in 12.8 V LFP replacement for lead-acid batteries, with Bluetooth monitoring — for RVs, low-speed vehicles, small UPS and marine systems.

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Specification Brochure data
Battery type
LFP (lithium iron phosphate)
Nominal voltage
12.8 V
Charge voltage, max
14.6 V
Discharge cut-off voltage
10 V
Configuration
4S1P / 4S2P
Enclosure
ABS case

Preliminary figures from the current brochure. Final configuration and performance are confirmed in the quotation.

01Model overview

12.8 V Nominal voltage
Design life
2 Models in this range
Model Rated energy Capacity Configuration Dimensions Max charge Max discharge
12V100Ah 1.28 kWh 100 Ah 4S1P 330 × 173 × 213 mm 50 A 100 A
12V200Ah 2.56 kWh 200 Ah 4S2P 526 × 238 × 246 mm 100 A 200 A

Figures are taken from the current AllGrand product brochure. Specifications are indicative and may be revised without notice — confirm with our engineers before ordering.

02Overview

Lead-to-lithium replacement battery, front angle view

A drop-in 12.8 V LFP replacement for lead-acid batteries, with Bluetooth monitoring — for RVs, low-speed vehicles, small UPS and marine systems.

03Key features

  • Configuration attributes
    • Available configurations include: 12 V, Bluetooth, Lead-acid replacement.
  • Specified against the duty cycle
    • Cell and plate selection matched to the real operating profile.
    • Capacity and autonomy sized to the load, not to a catalogue average.
  • Batch control
    • Incoming material control and in-process inspection on every batch.
    • Traceability from plate casting through to packing.
  • End-of-line testing
    • Electrical testing before packing, with results available on request.

04Specification

Battery type
LFP (lithium iron phosphate)
Nominal voltage
12.8 V
Charge voltage, max
14.6 V
Discharge cut-off voltage
10 V
Configuration
4S1P / 4S2P
Enclosure
ABS case
Communication
Bluetooth
Cycle life
≥ 3000 cycles (80% DOD)
Charge temperature
0 – 45 °C
Discharge temperature
-20 – 50 °C
Storage temperature
< 12 months -10 – 35 °C · < 3 months -10 – 45 °C · < 7 days -20 – 65 °C
Company certification
ISO 9001 · ISO 14001 · ISO 45001

Figures are taken from the current AllGrand product brochure. Specifications are indicative and may be revised without notice — confirm with our engineers before ordering.

Applications & selection

Retrofit a 12 V lead-acid system with lithium chemistry

Typical fit

  • UPS and backup cabinets
  • Telecom and remote power systems
  • Marine and vehicle auxiliary power

Confirm before quotation

  • Existing charger voltage and charging profile
  • BMS, inverter and equipment compatibility
  • Continuous current and high-current peak load

Engineering guides

Lead-acid vs LFP for commercial backup Compare operating life, maintenance, footprint and whole-project trade-offs. Battery storage RFQ checklist Use the same technical inputs our engineers need to price and configure a system. Supplier due diligence questions Compare scope, interfaces, test evidence, guarantees and service assumptions.
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