Why Use the LiFePO4 Battery to Replace the Lead-Acid Batteries?

Lead-acid batteries have many similarities with lithium iron phosphate batteries, and, some of the characteristics and application fields of the batteries themselves are almost the same. Next, let’s analyze the advantages and disadvantages of the similarities and differences between the two different batteries in detail.

MÄNNLICH LiFePO4 battery VS lead-acid battery

Comparing with the same voltage, same capacity, same size and same field of use

Lead-acid batteries contain high amounts of lead, acid, and antimony in heavy metals, which are easy to leak during use and maintenance, causing pollution to humans and the surrounding environment, and internal sulfuric acid overflows to cause corrosion, which is very destructive

Lithium iron phosphate battery is a green and environmentally friendly material battery, harmless material, no pollution and harm to humans and the surrounding environment.

Lead-acid battery technology is quite mature and high safety, but it will cause fire and explosion under violent impact

Lithium iron phosphate batteries are inert material, due to the characteristics of the material itself, No explosion under intense impact, low damage to people and the surrounding environment, and high safety

The lithium iron phosphate battery is 3-4 times that of the lead-acid battery

Lithium iron phosphate battery is 3-4 times that of the lead-acid battery.

Lead-acid batteries have a memory effect and cannot be charged and discharged at any time. The service life is 300-500 times, about 2 to 3 years.

Lithium iron phosphate battery has no memory effect and can be charged and discharged at any time. After the service life of 2000 times, the battery storage capacity is still more than 80%, up to 5000 times and above, and can be used for 10 to 15 years

Lead-acid battery is suitable for use in the range of -20°C to -55°C due to the freezing of the electrolyte at low temperatures, , especially in winter when the temperature is low and cannot be used normally.

Lithium iron phosphate battery is suitable for -20℃-75℃, or even higher, and can still release 100% of the energy. The thermal peak of a lithium iron phosphate battery can reach 350℃-500℃. Lead-acid batteries are only 200°C

Lead-acid battery self-discharges 15-30%, and the self-discharge is large. If it is not used for a long time, it will cause damage to the internal materials of the battery. The battery cannot be charged and discharged normally and cannot be used normally.

Comparing the capacity with the same voltage:

The price of lithium iron phosphate is much higher than that of lead-acid batteries.

The price of lead-acid batteries is much higher than the price of lithium iron phosphate batteries in a comprehensive comparison of the same capacity and service life

Lead-acid batteries require costs in both use and maintenance, and their costs increase accordingly

Lithium iron phosphate batteries do not require maintenance and can be used with normal charging, with high stability.

Lead-acid battery has a small discharge rate and cannot be used for high current charging.

Lithium iron phosphate battery has strong power and can be quickly charged and discharged. It can be fully charged by more than 80% in 20 minutes and can be fully discharged in 15 minutes.

MÄNNLICH Lead-acid Battery Replacement Serie Classification

Different Density Capacity

12v 100ah c_副本 - manly

12v Lifepo4 Battery
(12.8V 7AH ~ 12.8V 300AH)

24100-1_副本-1 - manly

24v Lifepo4 Battery
(24V 20AH ~ 24V 200AH)

48v100ah lifepo4 battery - manly

48v Lifepo4 Battery
(48V 20AH ~ 48V 200AH)

Different Application Scenarios

Solar energy system - manly

Solar Energy System

Rv - manly

RV

Model
Nominal voltage
(V)
Nominal capacity
(AH)
Charging current
(A)
Discharge current
(A)
Communication protocol
Bluetooth function
Dimension  (mm)
L*B*H*T
MF1207A
 12.8 7 7 1-20 Optional Optional 151 65 94 100
MF1209A
 12.8 9 9 1-30 Optional Optional 151 65 94

100
MF1210A
 12.8 10 10 1-30 Optional Optional 151 65 94

100
MF1212A
 12.8 12 12 1-36 Optional Optional 151 98 94

100
MF1218A
 12.8 18 18 1-55 Optional Optional 181 77 167 167
MF1220A
 12.8 20 20 1-60 Optional Optional 181 77 167 167
MF1224A
 12.8 24 24 1-70 Optional Optional 166 175 125

125
MF1230A
 12.8 30 30 1-90 Optional Optional 175 166 125 125
MF1236A
 12.8 36 36 1-105 Optional Optional 196 131 155 170
MF1240A
 12.8 40 40 1-120 Optional Optional 196 131 155 170
MF1242A
 12.8 42 42 1-125 Optional Optional 196 166 171

171
MF1248A
 12.8 48 48 1-145 Optional Optional 196 166 171 171
MF1250A
 12.8 50 50 1-150 Optional Optional 230 138 208 232
MF1255A
 12.8 55 55 1-165 Optional Optional 230 138 208

232
MF1260A
 12.8 60 60 1-180 Optional Optional 240 200 199 209
MF1265A
 12.8 65 65 1-195 Optional Optional 350 166 179

179
MF1270A
 12.8 70 70 1-200 Optional Optional 260 169 210

210
MF1272A
 12.8 72 72 1-200 Optional Optional 260 169 210

210
MF1275A
 12.8 75 75 1-200 Optional Optional 260 169 210

210
MF1278A
 12.8 78 78 1-200 Optional Optional 260 169 210

210
MF1280A
 12.8 80 80 1-200 Optional Optional 260 169 210

229
MF1285A
 12.8 85 85 1-200 Optional Optional 260 169 210

229
MF1290A
 12.8 90 90 1-200 Optional Optional 306 168 210

234
MF12100A
 12.8 100 100 1-200 Optional Optional 330 172 214

237
MF12108A
 12.8 108 108 1-200 Optional Optional 330 172 214

237
MF12120A
 12.8 120 120 1-200 Optional Optional 407 173 209

235
MF12132A
 12.8 132 132 1-200 Optional Optional 340 173 280

289
MF12145A
 12.8 145 145 1-200 Optional Optional 484 171 240

240
MF12150A
 12.8 150 150 1-200 Optional Optional 484 171 240

240
MF12160A
 12.8 160 160 1-200 Optional Optional 530 209 216

237
MF12180A
 12.8 180 180 1-200 Optional Optional 530 209 216

237
MF12200A
 12.8 200 200 1-200 Optional Optional 522 240 220

244
MF12250A
 12.8 250 250 1-200 Optional Optional 520 268 220

240
MF12300A
 12.8 300 300 1-200 Optional Optional 520 268 220

240

NOTE:

A. The above tables are all optional with communication protocols. According to your needs, whether you need a communication protocol or which type of communication protocol (three commonly used: CAN, RS485, RS232), please let us know before placing an order.

B. The above table is optional with the Bluetooth function, according to whether your product needs to be equipped with the Bluetooth function, please let us know before placing an order.

C. The product designed by each customer is different, the product size is also different (dimension error is about ≤2mm), and the shell material is different (metal shell, plastic shell, PVC shrinkable shell) We can make according to the size of the battery you need Design and production.

D. Connect the batteries in series and parallel to adjust the different voltages and capacities of the batteries according to the use requirements of the product.

E. Since the energy density of MANLY lithium iron phosphate batteries is higher than that of lead-acid batteries, the same voltage, same capacity, and volume can be made smaller. The same voltage, same volume, and capacity can be made higher. To meet your needs of different sizes and different capacities.