LB-series | 100/230/300Ah 25.6/51.2V LiFePO4 solar storage battery

Storage BatteryModel evidence review

Techfine LB 25.6/51.2 V LiFePO4 battery: Verify Battery and System Scope

Name: Techfine LB 25.6/51.2 V LiFePO4 battery: Verify Battery and System Scope
Brand: Techfine

This page organizes the current source table for the Techfine LB 25.6/51.2 V LiFePO4 battery. 100/230/300 Ah members; table includes member-dependent current/energy routes. It does not convert a family energy value into usable system energy, runtime, inverter compatibility or a complete supplied system.

Displayed family: LB 25.6/51.2 V LiFePO4 battery

Current table route: 100/230/300 Ah members; table includes member-dependent current/energy routes

RFQ boundary: Exact member, BMS and system scope required

Supply boundary: No price, stock or included-system inference

Build Your RFQ

Current source route: LB 25.6/51.2 V LiFePO4 battery.

Downloads

lb-series brochure.pdf (PDF brochure / document)

Current source parameter table

This table is preserved from the current source record. Read it with the identity, compatibility and document boundaries below; unresolved conflicts are not corrected by assumption.

Models	LB100AH/51.2VTA	LB230AH/51.2V	LB300AH/51.2V	LB100AH/25.6V	LB230AH/25.6V	LB300AH/25.6V
Available Capacity	5120WH	11776WH	14336WH	2560WH	5888WH	8038WH
Electrical Specifications
Cell Chemistry	LiFePO4
Maximum Continuous Discharge Current	100A	100A\200A	200A	100A	200A	200A
Rated Voltage	51.2V\|DC	25.6V\|DC
Voltage Range	43.2V-58.4V\|DC	21.6V-29.2V\|DC
Maximum Output Power	5120W	5120W\10240W	10240W	2560W	5120W
Charging Parameters
Maximum Charging Voltage	58.4V±0.2V\|DC	29.2±0.2V\|DC
Recommended Charging Voltage	57.6V±0.2V\|DC	28.8±0.2V\|DC
Recommended Charging Current	50A	100A\115A	140A	50A	115A	157A
Charging Current Limitation Function	10A	10A\20A	20A	10A	20A
Power Consumption & Efficiency
Low Power Consumption	Working self-consumption ≤50mA, low-power mode ≤200uA
Battery depth of discharge (DOD)	≥95%
Cycle life (standard charge/discharge at room temperature)	≥5000 cycles	≥5000 cycles	≥5000 cycles	≥5000 cycles	≥5000 cycles	≥5000 cycles
Protection Features
Long-delay Over-current Protection for Charge/Discharge	BMS100: Alarm >105A, Protection >110A/1s BMS200: Alarm >205A, Protection >210A/1s
Instant Over-current Protection for Discharge	BMS100:≥150A/100ms BMS200:≥250A/100ms
Over-voltage Protection Recovery	Discharge current >1A to recover (51.2V model: 59.2V, 25.6V model: 29.6V over-voltage point)
Over-discharge Protection Recovery	Connect charger to activate (51.2V model: 43.2V, 25.6V model: 21.6V over-discharge point)
Charge Over-current Protection Recovery	Discharge current >1A to recover
Over-discharge current protection release	Released when charging current >1A
Short-circuit protection function Present	automatically released during charging
MOS high-temperature protection	MOSFET over-temperature protection
Cell temperature protection	Protection for low cell temperature (-20°C) and high temperature (70°C)
Ambient temperature alarm	Low-temperature protection -20°C; high-temperature protection 75°C
Cell failure protection	Single-cell voltage difference >1V
Display & Monitoring
Display	LED light strip indicator + LCD display	LCD display
Communication & Expansion
Modules connection	1-15
Communication	Standard RS232, RS485, CAN
Environmental Ratings
Protection rating	IP21
Operating temperature range	Discharge: -10°C to +50°C; Charge: +0°C to +60°C
Storage temperature	>1 month: 0–35°C; ≤1 month: -20–45°C
Mechanical Specifications
Terminal type	M8
Depth × Width × Height (mm)	720480170	785510293	755490253	532347170	475420255	476496255
Weight (net weight, for reference)KG	54.5	100	116	30	51	65

Current document status

Request the exact member datasheet, nameplate, BMS/communication schedule, current limits, wiring, supplied BOM, transport evidence and warranty before release.

Current source evidence

Keep energy, voltage and current on the same member

Battery selection requires the exact electrical member and the connected inverter/system design.

Member route

100/230/300 Ah members; table includes member-dependent current/energy routes

Energy and runtime

Nominal Wh does not establish usable energy or runtime; confirm discharge rate, cutoff, reserve, temperature and conversion losses.

BMS and compatibility

Voltage and LiFePO4 chemistry do not prove inverter/BMS communication, firmware, current limits or warranty compatibility.

System/BOM scope

For all-in-one routes, confirm whether battery, inverter, PV input, cables, protection, enclosure, commissioning and installation items are included.

Storage RFQ checks

Six checks before finalizing the battery or ESS

Define the selected member, electrical interfaces, operating duty and delivered scope.

Exact model

Request full model/suffix, revision, nameplate and table row.

Energy and power

Confirm nominal/usable energy, continuous/peak power/current, discharge limits, cutoff, reserve and temperature.

BMS and inverter

Confirm CAN/RS485 or other protocol, firmware, approved inverter list, settings and fault behavior.

PV and AC scope

For ESS, confirm PV/MPPT, AC input/output, grid/backup mode, loads, protection and transfer path.

Mechanical and safety

Confirm rack/case, terminals, cable, grounding, ventilation, transport, fire/site requirements and installation responsibilities.

Evidence and supply

Request manual, wiring, certificates for exact model/destination, BOM, warranty, packing, lead time and substitution controls.

Storage boundaries

A battery or all-in-one headline is not a complete project guarantee

Final capacity, compatibility, backup and grid behavior require the exact member and project-specific design.

Family-member boundary

Do not transfer energy, voltage, current, cycle, BMS or mechanical data across members.

Usable energy boundary

Nominal capacity differs from usable energy due to DoD, current, temperature, cutoff, losses and reserve.

Compatibility boundary

BMS pairing, firmware and inverter approvals require written exact-model evidence.

ESS scope boundary

All-in-one wording does not establish delivered PV, AC, battery, cables, protection, installation or grid-approval scope.

Continue the storage review

Prepare an evidence-based storage RFQ

Use existing sizing guidance to state the actual load, energy, power and system scope.

Battery sizing guide

Connect load, usable energy, power, reserve and temperature to a design basis.

Review sizing inputs →

Battery export checklist

Confirm exact pack identity, UN38.3, SDS, packing and traceability requirements.

Review export files →

Storage FAQ

Questions to close before quotation

Exact member documents and project interfaces determine the final answer.

Which member applies to this LB 25.6/51.2 V LiFePO4 battery?

The current table route is 100/230/300 Ah members; table includes member-dependent current/energy routes. Request the exact selected code, nameplate and latest table before quotation.

Can nominal Wh be used as backup runtime?

No. Runtime requires usable DoD, load, power limits, conversion losses, cutoff, reserve, temperature and battery condition.

Will it work with any same-voltage inverter?

No. Confirm BMS protocol, firmware, current/power limits, settings and the exact-model compatibility approval.

What should the RFQ include?

Request exact datasheet/manual, BMS interface, wiring, current limits, certificates/transport files, BOM, warranty and delivery scope.

Prepare a verified LB 25.6/51.2 V LiFePO4 battery RFQ

Send load, energy/autonomy target, inverter or ESS topology, PV/AC route, destination and required documents.

Verify Storage Configuration