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Deep Discharge Recovery 12V 40Ah LiFePO4 Lithium Battery Replacement for Lead Acid

Name: Deep Discharge Recovery 12V 40Ah LiFePO4 Lithium Battery Replacement for Lead Acid
Brand: Wuhan Future Intepower Co., Ltd.
SKU: FB-1240
Availability: InStock

Product Details

Place of Origin: China

Brand Name: FBATTERY

Certification: CE,UL,ROHS

Model Number: FB-1240

Payment & Shipping Terms

Minimum Order Quantity: Negotiable

Price: Negotiable

Packaging Details: Carton

Delivery Time: 20Days

Payment Terms: L/C,D/A,D/P,T/T in advance

Supply Ability: 10000PCS/30Days

Get Best Price

Product Details

Product Description

Ratings & Reviews

Highlight: 
                                                                                                                                                                                                                                                            Powerful LiFePO4 Lithium Battery, 12V 40Ah LiFePO4 Lithium Battery
                      

Cell Type:	Li-ion	Rating Voltage:	12V
Capacity:	40Ah	Charge Voltage:	14.6V±0.05V
Impedance:	20mΩ（Max）	Size:	LWH=195133171mm
Operating Temperature:	Charging 0~45℃	Storage Temperature:	-10℃-40℃ Recommend（25±5℃）
Weight Approx:	4.2kg

Cell Type:	Li-ion
Rating Voltage:	12V
Capacity:	40Ah
Charge Voltage:	14.6V±0.05V
Impedance:	20mΩ（Max）
Size:	LWH=195133171mm
Operating Temperature:	Charging 0~45℃
Storage Temperature:	-10℃-40℃ Recommend（25±5℃）
Weight Approx:	4.2kg

Deep Discharge Recovery 12V 40Ah LiFePO4 Lithium Battery Replacement for Lead Acid

Deep Discharge Recovery Powerful LiFePO4 Lithium Battery Replacement Lead Acid 12V 40Ah

A high-performance LiFePO4 lithium battery designed as a direct replacement for lead-acid batteries, featuring deep discharge recovery capability and robust power delivery.

Technical Specifications

No	Item	Parameter	Remark
1	Rating Voltage	12V
2	Capacity	40Ah	1C discharge after full charge
	Minimum Capacity	38Ah
3	Charge Voltage	14.6V±0.05V
4	Impedance	20mΩ(Max)
5	Charging Mode	C.C/C.V.	Constant Current / Constant Voltage
6	Charging Method	Standard Charging	Charging Current 6A
	Fast Charging	Charging Current 20A
7	Charging Time	Standard Charging	8 Hours
	Fast Charging	2.6 Hours
9	Overcharge Voltage	3.65±0.05V
10	Over Discharge Cut Off Voltage	2.2V±0.1V
11	Over Current	55-80A
12	Short Circuit
13	Operating Consumption Current	50uA(MAX)
14	Operating Temperature	Charging: 0~45℃ Discharging: -10~60℃
15	Storage Temperature	-10℃-40℃ Recommend(25±5℃)	Storage capacity should be 40%~50% full charge capacity
16	NTC Resistor	/
17	ESD Test	±4KV
18	Discharge current	≤40A
19	The factory voltage	12.8-13.6V	The open circuit state
20	Weight Approx	4.2kg

Storage Guidelines

Store in clean, dry, and well-ventilated rooms at temperatures between -5℃ to 35℃
Keep away from fire, heat sources, and corrosive elements
Charge batteries every 3 months during storage
Follow "first come, first use" principle for both stored cells and batteries in delivery
Maximum storage period is 24 months from warehouse entry
Batteries exceeding storage period must undergo thorough inspection
Only applicable batteries should be dispatched to purchasers
Non-applicable batteries require rechecking, with purchaser having disposal rights for defective units

Overall Rating

5.0

Based on 50 reviews for this product

Rating Snapshot

The following is the distribution of all ratings

5 stars

100%

4 stars

3 stars

2 stars

1 stars

All Reviews

Chul-soo Flores

France Jul 1.2026

Helpful (3)

We installed these Deep Discharge Recovery 12V 40Ah LiFePO4 Lithium Battery Rep units in our telecom base station and they have performed flawlessly for over a year. Reliability is exactly what we needed for this application.

Abigail Wright

Saudi Arabia May 10.2026

Helpful (0)

Would recommend these to anyone needing dependable Deep Discharge Recovery 12V 40Ah LiFePO4 Lithium Battery Rep. We use them in our UPS backup for office and the performance has been outstanding.

Robert Walker

France Apr 25.2026

Helpful (0)

After comparing several suppliers, we chose these and have no regrets. The off-grid cabin power has been running smoothly for 10 months now.

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