CC and CV Charging of Lithium Polymer Battery

CC and CV Charging of lithium polymer battery

Constant Current and Constant Voltage Charging

When it comes to battery technology, especially for rechargeable batteries like lithium polymer batteries, the charging process is extremely important for the overall lifespan, performance, and safety of the battery. Two common methods for battery charging are Constant Current (CC) and Constant Voltage (CV) charging, which are often used together in what is known as a CC-CV charging profile. Understanding these concepts can greatly affect how efficiently and safely you can charge your lithium polymer batteries.

Constant Current (CC) Charging

Constant Current charging involves delivering a steady current to the lithium polymer battery at a rate that is safe and effective until the lithium polymer battery reaches a certain voltage level. This phase is critical for restoring most of the battery’s capacity. Here’s how it works:

Rate of Charge:
The current used typically depends on the battery’s capacity and is expressed as a fraction of its capacity (C-rate). For example, charging a lithium polymer battery at a 1C rate means charging it at a current that would theoretically fill the battery in one hour.

Advantages:
The primary advantage of CC charging is that it can recharge batteries quickly and efficiently. It’s also relatively simple to implement in charging circuits.

Application:
Constant Current charging is used in the initial stage of the charging process when the lithium polymer battery voltage is below its target threshold. For lithium polymer batteries, this often means charging until the battery reaches around 70-80% of its full capacity.

Constant Voltage (CV) Charging

Once the lithium polymer battery reaches the voltage threshold set in the CC phase, the charger switches to Constant Voltage mode. During this stage, the voltage across the battery terminals is held constant while the current gradually decreases as the battery approaches full capacity. Here’s what happens:

Maintaining Voltage:
The charger applies enough voltage to counteract the internal resistance of the lithium polymer battery, maintaining a steady voltage that typically matches the maximum rated voltage of the battery.

Tapering Current:
As the battery charges up, the current needed to maintain the voltage decreases. This helps prevent overcharging, which can be harmful to the lithium polymer battery.

Advantages:
Constant Voltage charging ensures that the battery reaches its maximum capacity without the risk of overcharging, which can extend the life of the lithium polymer battery.

Application:
This method is used once the lithium polymer battery reaches the CC voltage threshold and continues until the charging current drops to a low predetermined level or stops altogether.

Combining CC and CV for Optimal Charging

Most modern lithium polymer batteries benefit from a combination of both CC and CV charging:

CC-CV Transition: A typical lithium polymer battery charger starts with Constant Current charging to quickly bring the battery up to about 70-80% of its full capacity. It then switches to Constant Voltage charging to top off the lithium polymer battery’s charge up to 100% while protecting it from overcharging.

Optimized Charging: This combined approach not only speeds up the charging process but also maximizes the battery’s lifespan by avoiding stress and overheating, which are common with other charging methods.

Constant Current and Constant Voltage charging are fundamental to modern lithium polymer battery technology, providing an efficient and safe way to charge batteries. By understanding and applying these methods, manufacturers and users can ensure that batteries are not only charged quickly but also have extended lifespans and optimal performance. Whether you’re dealing with a smartphone, an electric vehicle, or any device that relies on rechargeable batteries, understanding these charging principles is crucial.

China Manufacturer of Lithium Polymer Battery

LiPol Battery Co., Ltd is a leading manufacturer of lithium polymer batteries and 18650 lithium batteries, based in China. We take immense pride in our commitment to quality, and we are proud to be ISO9001:2015 certified. Some of our lithium polymer battery meets the IEC62133, UN38.3, UL2054, RoHS, CE, MSDS test standards. Send us your inquiry about lithium polymer batteries, and you will receive a fast reply within a few hours, along with a free consultation.

Hot Lithium Polymer Battery Models

Rechargeable Lithium Polymer Battery Lists

ModelCapacityT(mm)W(mm)L(mm)
LP1034502000mAh103450
LP1034502000mAh103450
LP1039372000mAh103937
LP1040402000mAh104040
LP1041352000mAh104135
LP1234502000mAh123450
LP1892922000mAh1.89292
LP1990842000mAh1.99084
LP2465862000mAh2.46586
LP3068872000mAh36887
LP3660732000mAh3.66073
LP3760732000mAh3.76073
LP4043762000mAh44376
LP4548802000mAh4.54880
LP4654662000mAh4.65466
LP5039862000mAh53986
LP5050592000mAh55059
LP5050602000mAh55060
LP5150602000mAh5.15060
LP5250602000mAh5.25060
LP5342722000mAh5.34272
LP5350602000mAh5.35060
LP5843682000mAh5.84368
LP5951502000mAh5.95150
LP6040692000mAh64069
LP6043512000mAh64351
LP6043572000mAh64357
LP6048602000mAh64860
LP6050602000mAh65060
LP6140632000mAh6.14063
LP6140692000mAh6.14069
LP6338702000mAh6.33870
LP6933572000mAh6.93357
LP7040602000mAh74060
LP7043452000mAh74345
LP7146502000mAh7.14650
LP7434592000mAh7.43459
LP7541772000mAh7.54177
LP8035572000mAh83557
LP8038602000mAh83860
LP8434502000mAh8.43450
LP8827672000mAh8.82767
LP9034552000mAh93455
LP9035622000mAh93562
LP9044472000mAh94447
LP9045472000mAh94547
LP9734502000mAh9.63450
LP9934502000mAh9.93450
LP1885952050mAh1.88595
LP3166782050mAh3.16678
LP3957592050mAh3.95759
LP9840502050mAh9.84050
LP7834962050mAh7.83496
LP2465882100mAh2.46588
LP2565992100mAh2.56599
LP4050802100mAh45080
LP4550702100mAh4.55070
LP5262742100mAh5.26274
LP5460692100mAh5.46069
LP5542622100mAh5.54262
LP5843542100mAh5.84354
LP7730622100mAh7.73062
LP8040552100mAh84055
LP3562692150mAh3.56269
LP3761762150mAh3.76176
LP8643452150mAh8.64345
LP1238402200mAh123840
LP3366782200mAh3.36678
LP4056652200mAh45665
LP4845942200mAh4.84594
LP50251252200mAh525125
LP6046552200mAh64655
LP6141742200mAh6.14174
LP6743522200mAh6.74352
LP8135572200mAh8.13557
LP9938482200mAh9.93848
LP6044652230mAh64465
LP1044432250mAh104443
LP3259872250mAh3.25987
LP4055662250mAh45566
LP5650652250mAh5.65065
LP6150542250mAh6.15054
LP7037602250mAh73760
LP7150492250mAh7.15049
LP9339672250mAh9.33967
LP5438772270mAh5.43877
LP1238372300mAh123837
LP21651362300mAh2.165136
LP5460802300mAh5.46080
LP5642702300mAh5.64270
LP7228862300mAh7.22886
LP7235652300mAh7.23565
LP7248472300mAh7.24847
LP7540602300mAh7.54060
LP8543452300mAh8.54345
LP5043832300mAh54383
LP1030552350mAh103055
LP5842822380mAh5.84282
LP1044462400mAh104446
LP1238402400mAh123840
LP25581122400mAh2.558112
LP28581202400mAh2.858120
LP3752922400mAh3.75292
LP41411102400mAh4.141110
LP4249852400mAh4.24985
LP4361652400mAh4.36165
LP4758682400mAh4.75868
LP5451692400mAh5.45169
LP5840702400mAh5.84070
LP9740502400mAh9.64050
LP56421252400mAh5.642125
LP6341732430mAh6.34173
LP1238402450mAh123840
LP4654662450mAh4.65466
LP5544662450mAh5.54466
LP5551702450mAh5.55170
LP6051752450mAh65175
LP9037592450mAh93759
LP9039492450mAh93949
LP7740512460mAh7.74051
LP1338402500mAh133840
LP3258832500mAh3.25883
LP3269902500mAh3.26990
LP35531232500mAh3.553123
LP3654792500mAh3.65479
LP4654672500mAh4.65467
LP4752662500mAh4.75266
LP4852652500mAh4.85265
LP5250702500mAh5.25070
LP5360622500mAh5.36062
LP5544682500mAh5.54468
LP5650602500mAh5.65060
LP5935782500mAh5.93578
LP6043652500mAh64365
LP6143652500mAh6.14365
LP6537842500mAh6.53784
LP6826932500mAh6.82693
LP7050482500mAh75048
LP7338642500mAh7.33864
LP7542602500mAh7.54260
LP7852532500mAh7.85253
LP8837642500mAh8.83764
LP28661032500mAh2.866103
LP3070952500mAh37095
LP5055732500mAh55573
LP6560802500mAh6.56080
LP4867622520mAh4.86762
LP31531002550mAh3.153100
LP4741972550mAh4.74197
LP8533622550mAh8.53362
LP9633642550mAh9.63364
LP1231582550mAh123158
LP7638712570mAh7.63871
LP1039462600mAh103946
LP1044432600mAh104443
LP1135502600mAh113550
LP1241472600mAh124147
LP36661002600mAh3.666100
LP4666522600mAh4.66652
LP4762612600mAh4.76261
LP5055852600mAh55585
LP5150702600mAh5.15070
LP5750682600mAh5.75068
LP6242832600mAh6.24283
LP6649522600mAh6.64952
LP7741692600mAh7.74169
LP7831942600mAh7.83194
LP7841692600mAh7.84169
LP8233652600mAh8.23365
LP8430902600mAh8.43090
LP3069982600mAh36998
LP55441262600mAh5.544126
LP1134532620mAh113453
LP1133552650mAh113355
LP1139492650mAh113949
LP5344902650mAh5.34490
LP8041692650mAh84169
LP1036622700mAh103662
LP1036622700mAh103662
LP1040502500mAh104050
LP1240402700mAh124040
LP1240422700mAh124042
LP45501052700mAh4.550105
LP5350682700mAh5.35068
LP7045602700mAh74560
LP7862632700mAh7.86263
LP1234502750mAh123450
LP4954862750mAh4.95486
LP8743562750mAh8.74356
LP1038482800mAh103848
LP1144432800mAh114443
LP1145422800mAh114542
LP1147602800mAh114760
LP27661112800mAh2.766111
LP4063952800mAh46395
LP4160722800mAh4.16072
LP4453852800mAh4.45385
LP5538932800mAh5.53893
LP5660622800mAh5.66062
LP5752732800mAh5.75273
LP6751632800mAh6.75163
LP6838862800mAh6.83886
LP6840822800mAh6.84082
LP7039862800mAh73986
LP7247652800mAh7.24765
LP8146552800mAh8.14655
LP8730782800mAh8.73078
LP9137592800mAh9.13759
LP40501092800mAh450109
LP1045452850mAh104545
LP1139492850mAh113949
LP1144432850mAh114443
LP5855582850mAh5.85558
LP2583962880mAh2.58396
LP1238462900mAh123846
LP5350682900mAh5.35068
LP6850652900mAh6.85065
LP8041632900mAh84163
LP33491182930mAh3.349118
LP1040492950mAh104049
LP1041582950mAh104158
LP1046462950mAh104646
LP1140492950mAh114049
LP4653752950mAh4.65375
LP6057592950mAh65759
LP7343622950mAh7.34362
LP8843532950mAh8.84353
ModelCapacityT(mm)W(mm)L(mm)
LP1040553000mAh104055
LP1040563000mAh104056
LP1040583000mAh104058
LP1040603000mAh104060
LP1050523000mAh105052
LP1139473000mAh113947
LP3957803000mAh3.95780
LP3958803000mAh3.95880
LP3962813000mAh3.96281
LP40561053000mAh456105
LP4057793000mAh45779
LP40601003000mAh460100
LP4157803000mAh4.15780
LP4652773000mAh4.65277
LP4860793000mAh4.86079
LP50501103000mAh550110
LP5051923000mAh55192
LP5055713000mAh55571
LP5165703000mAh5.16570
LP5560693000mAh5.56069
LP5751713000mAh5.75171
LP6040963000mAh64096
LP6042853000mAh64285
LP6050803000mAh65080
LP6058603000mAh65860
LP6161623000mAh6.16162
LP6354863000mAh6.35486
LP6355603000mAh6.35560
LP6543783000mAh6.54378
LP6561593000mAh6.56159
LP67251253000mAh6.725125
LP6851633000mAh6.85163
LP7047653000mAh74765
LP7243723000mAh7.24372
LP7247653000mAh7.24765
LP7259463000mAh7.25946
LP7342643000mAh7.34264
LP7447653000mAh7.44765
LP7547603000mAh7.54760
LP7547653000mAh7.54765
LP7956613000mAh7.95661
LP8040693000mAh84069
LP8042703000mAh84270
LP8633813000mAh8.63381
LP8641673000mAh8.64167
LP9030903000mAh93090
LP9539563000mAh9.53956
LP9633643000mAh9.63364
LP9840653000mAh9.84065
LP9942513000mAh9.94251
LP52721003000mAh5.272100
LP55431253000mAh5.543125
LP6062613000mAh66261
LP8050703000mAh85070
LP4666663020mAh4.66666
LP4757753020mAh4.75775
LP6561593020mAh6.56159
LP28691213030mAh2.869121
LP30691213030mAh369121
LP4845883030mAh4.84588
LP3672753050mAh3.67275
LP8650603080mAh8.65060
LP1146473100mAh114647
LP1240523100mAh124052
LP44411103100mAh4.441110
LP7040853100mAh74085
LP7342663100mAh7.34266
LP50361083150mAh536108
LP9446553150mAh9.44655
LP1131783200mAh113178
LP1138593200mAh113859
LP1145453200mAh114545
LP18961423200mAh1.896142
LP24811193200mAh2.481119
LP24921013200mAh2.492101
LP26881273200mAh2.688127
LP3962833200mAh3.96283
LP6557653200mAh6.55765
LP7148723200mAh7.14872
LP7642703200mAh7.64270
LP8062753200mAh86275
LP8254583200mAh8.25458
LP5051983200mAh55198
LP72421253200mAh7.242125
LP5344873220mAh5.34487
LP31651153250mAh3.165115
LP6540803250mAh6.54080
LP6551653250mAh6.55165
LP7450603250mAh7.45060
LP6147703270mAh6.14770
LP1239493350mAh123949
LP5660713350mAh5.66071
LP6960543350mAh6.96054
LP1039623400mAh103962
LP1040603400mAh104060
LP1046503400mAh104650
LP1143483400mAh114348
LP1243453400mAh124345
LP3966813400mAh3.96681
LP4554863400mAh4.55486
LP6658683400mAh6.65868
LP7044763400mAh74476
LP9242613400mAh9.24261
LP9850563400mAh9.85056
LP30651213450mAh365121
LP5059733450mAh55973
LP7050763450mAh75076
LP1135593500mAh113559
LP1340533500mAh134053
LP1340553500mAh134055
LP28521453500mAh2.852145
LP291001003500mAh2.9100100
LP29521453500mAh2.952145
LP4260843500mAh4.26084
LP4664803500mAh4.66480
LP5065683500mAh56568
LP5167833500mAh5.16783
LP5849763500mAh5.84976
LP6252933500mAh6.25293
LP7059553500mAh75955
LP7147663500mAh7.14766
LP7550593500mAh7.55059
LP7550603500mAh7.55060
LP8349643500mAh8.34964
LP8450533500mAh8.45053
LP8843683500mAh8.84368
LP9850683500mAh9.85068
LP2784963520mAh2.78496
LP5065843550mAh56584
LP1040703600mAh104070
LP1139693600mAh113969
LP43501303600mAh4.350130
LP4563853600mAh4.56385
LP4968673600mAh4.96867
LP5453853600mAh5.45385
LP58301323600mAh5.830132
LP6162623600mAh6.16262
LP7058613600mAh75861
LP9845643600mAh9.84564
LP4780743600mAh4.78074
LP5080753600mAh58075
LP5444973620mAh5.44497
LP30601343625mAh360134
LP50591153650mAh559115
LP4263863700mAh4.26386
LP5162813700mAh5.16281
LP5165833700mAh5.16583
LP6055723700mAh65572
LP7053703700mAh75370
LP28681473700mAh2.868147
LP8043843700mAh84384
LP11441513750mAh1144151
LP3097813750mAh39781
LP4967743750mAh4.96774
LP6055903750mAh65590
LP7441773750mAh7.44177
LP7550663750mAh7.55066
LP30661233770mAh366123
LP1043683800mAh104368
LP1136643800mAh113664
LP1140613800mAh114061
LP1233733800mAh123373
LP23901353800mAh2.390135
LP4963853800mAh4.96385
LP5265773800mAh5.26577
LP5463813800mAh5.46381
LP5564743800mAh5.56474
LP60501103800mAh650110
LP6060903800mAh66090
LP6452753800mAh6.45275
LP6743863800mAh6.74386
LP7065683800mAh76568
LP7861663800mAh7.86166
LP43431273815mAh4.343127
LP1337553850mAh133755
LP6554713850mAh6.55471
LP4290763900mAh4.29076
LP7545733900mAh7.54573
LP7550803900mAh7.55080
LP8555663900mAh8.55566
LP8849603900mAh8.84960
LP9842633900mAh9.84263
LP6266793950mAh6.26679
LP8346773950mAh8.34677
ModelCapacityT(mm)W(mm)L(mm)
LP1038684000mAh103868
LP1042624000mAh104262
LP1050654000mAh105065
LP1062494000mAh106249
LP1143664000mAh114366
LP1155704000mAh115570
LP1238634000mAh123863
LP1240654000mAh124065
LP251001154000mAh2.5100115
LP301001024000mAh3100102
LP3095954000mAh39595
LP311001004000mAh3.1100100
LP31611474000mAh3.161147
LP31721204000mAh3.172120
LP40651164000mAh465116
LP41551074000mAh4.155107
LP4259954000mAh4.25995
LP4364844000mAh4.36484
LP45531024000mAh4.553102
LP4558864000mAh4.55886
LP4563804000mAh4.56380
LP4764904000mAh4.76490
LP4854904000mAh4.85490
LP5171834000mAh5.17183
LP5460814000mAh5.46081
LP5469844000mAh5.46984
LP59661084000mAh5.966108
LP6060904000mAh66090
LP6062704000mAh66270
LP6150824000mAh6.15082
LP6160904000mAh6.16090
LP65361154000mAh6.536115
LP6553744000mAh6.55374
LP6554734000mAh6.55473
LP6956704000mAh6.95670
LP7056704000mAh75670
LP7056904000mAh75690
LP7153764000mAh7.15376
LP7560584000mAh7.56058
LP7647684000mAh7.64768
LP7763614000mAh7.76361
LP7850664000mAh7.85066
LP7860664000mAh7.86066
LP8050804000mAh85080
LP8063634000mAh86363
LP8245774000mAh8.14577
LP8345684000mAh8.34568
LP8553604000mAh8.55360
LP8560654000mAh8.56065
LP8647634000mAh8.64763
LP9339774000mAh9.33977
LP9438744000mAh9.43874
LP9440864000mAh9.44086
LP95251294000mAh9.525129
LP9546744000mAh9.54674
LP9554654000mAh9.55465
LP9555654000mAh9.55565
LP9646584000mAh9.64658
LP9843724000mAh9.84372
LP9845674000mAh9.84567
LP29501384020mAh2.950138
LP2990974020mAh2.99097
LP3095944020mAh39594
LP41541154050mAh4.154115
LP35631374100mAh3.56337
LP7154654100mAh7.15465
LP7254654100mAh7.25465
LP7546964100mAh7.54696
LP8050654100mAh85065
LP8338854100mAh8.33885
LP8555664100mAh8.55566
LP8652614100mAh8.65261
LP9348644100mAh9.34864
LP32981034150mAh3.298103
LP57411124150mAh5.741112
LP6052844150mAh65284
LP6452844150mAh6.45284
LP7358634150mAh7.35863
LP1043684200mAh104368
LP4786664200mAh4.78666
LP59361434200mAh5.936143
LP64411024200mAh6.441102
LP6557694200mAh6.55769
LP8550854200mAh8.55085
LP8845664200mAh8.84566
LP9061844200mAh96184
LP9443654200mAh9.44365
LP9643654200mAh9.64365
LP29831224200mAh2.983122
LP1049544250mAh104954
LP1252474250mAh125247
LP4287854250mAh4.28785
LP41671244300mAh4.167124
LP42771004300mAh4.277100
LP4666844300mAh4.66684
LP52481434300mAh5.248143
LP6060814300mAh66081
LP6654774300mAh6.65477
LP7075864300mAh77586
LP9036904300mAh93690
LP50501304320mAh550130
LP7353754320mAh7.35375
LP7257704375mAh7.25770
LP1340684400mAh134068
LP35581324400mAh3.558132
LP4365964400mAh4.36596
LP50451164400mAh545116
LP60361374400mAh636137
LP6544954400mAh6.54495
LP7359654400mAh7.35965
LP8050854400mAh85085
LP8543754400mAh8.54375
LP6259734450mAh6.25973
LP6359734450mAh6.35973
LP1043684500mAh104368
LP1239674500mAh123967
LP1343634500mAh134363
LP37721004500mAh3.772100
LP4268974500mAh4.26897
LP5465824500mAh5.46582
LP57521004500mAh5.752100
LP62481264500mAh6.248126
LP63481264500mAh6.348126
LP6856734500mAh6.85673
LP7052844500mAh75284
LP7255724500mAh7.25572
LP7657694500mAh7.65769
LP8551654500mAh8.55165
LP9554654500mAh9.55465
LP6755714530mAh6.75571
LP43571154600mAh4.357115
LP9054624600mAh95462
LP8544764630mAh8.54476
LP1145644650mAh114564
LP231081304650mAh2.3108130
LP6844924650mAh6.84492
LP7453684650mAh7.45368
LP7752754680mAh7.75275
LP7852754680mAh7.85275
LP1147634700mAh114763
LP1150534700mAh115053
LP5465914700mAh5.46591
LP5980684700mAh5.98068
LP6060804700mAh66080
LP8453764700mAh8.45376
LP9250634700mAh9.25063
LP9450654700mAh9.45065
LP9552614700mAh9.55261
LP30721394750mAh372139
LP35631334750mAh3.56333
LP5165844750mAh5.16584
LP5462804800mAh5.46280
LP5954904800mAh5.95490
LP7060904800mAh76090
LP7359774800mAh7.35977
LP9351664800mAh9.35166
LP1155704800mAh115570
LP6257784850mAh6.25778
LP48601004900mAh4.860100
LP7059734900mAh75973
LP4764954950mAh4.76495

How to order lithium polymer batteries?

1. Send your Requirements
Find us through the sidebar contact form, send us your requirements for the lipo battery, such as dimensions(thickness x width x length), voltage, capacity, max working current, protection circuit module(PCM), wires request, thermistor(NTC), connector type, etc. We will recommend the best suitable rechargeable lithium polymer battery for you.
2. Quotation
When we receive your inquiries, we will reply to you within 12 hours. We mainly communicate by email.
3. Order Process
When you are ready to place lithium polymer battery orders with us, we will confirm the battery models, quantities, prices, and other details, and send you an invoice for payment. We accept PayPal payments, credit cards payment, and bank transfer payments. Then, we will arrange your order. The lead time depends on specific orders.
4. Shipment
When we finish the lithium polymer batteries, we will ship them via DHL/UPS/FedEx air shipping, it is safe and fast. And, we will send the tracking number to you when we get it.
5. Warranty
Our warranty for the lithium polymer battery is one year after the sale. (Refund or resend batteries)
Range of warranty: There is low voltage, expansion, or leakage with the correct use of the lithium polymer battery in the warranty period.