Dɛn Ne Overcharge?
Mahu sɛ lithium batere pii asan aba yɛn sotɔɔ no mu a nkwammoaa a ahonhon wom. Mpɛn akron wɔ du biara mu no, owura no de kyekyeree lead-acid charger dedaw bi ho na ɔkɔɔ hɔ. Ebia overcharge ne ɔkwan a ɛyɛ ntɛm sen biara a wobɛfa so akum LiFePO4 battery a eye koraa.
Overcharge ba bere a current kɔ so sen kɔ cell bi mu bere a ayɛ ma dedaw no. Lithium iron phosphate nkwammoaa no fi soro bɛyɛ 3.65V wɔ nkwammoaa biara mu. Ɛsɛ sɛ 12V battery pack a ɛwɔ cells anan a ɛtoatoa so no gyae charge wɔ 14.6V. Kɔtwam saa na worebisa ɔhaw.
Nea Ɛkɔ Mfomso Wɔ Mu
Sɛ wopia LiFePO4 nkwammoaa bi twa 3.65V a, lithium ions nni baabiara a wɔbɛkɔ. Cathode no yɛ nea ɛyɛ ma. Lithium a ɛboro so fi ase plating out sɛ dade lithium wɔ anode no ani. Eyi yɛ asɛmmɔne. Metallic lithium yɛ adwuma na plating no yɛ nea wontumi nsakra. Wo capacity so tew na ɛnsan mma bio.
Me ne guy bi kasae afe a atwam no a ɔde ne fie battery bank dii dwuma wɔ 14.8V asram asia efisɛ wɔde ne charge controller no sii hɔ yiye. Ebia ɔhweree ne tumi 30%. Na nkwammoaa no nyɛ asiane nanso ne titiriw no ɔtow nea otuae no nkyem abiɛsa mu biako gui.
Chargers ne Charge Controllers a Wɔde Di Dwuma
Ɔhaw dodow no ara a mihu no fi nnwinnade a ɛne ne ho nhyia mu. Lead-acid chargers ntumi nyɛ adwuma mma lithium. AGM charger a wɔtaa de di dwuma no float wɔ 13.6-13.8V na bulk charges kɔ 14.4-14.7V. Saa nɔma no hwɛ bɛn lithium specs nanso charging algorithm no yɛ soronko koraa.
Lead-acid battery pɛ sɛ wonya absorption phase tenten wɔ voltage a ɛkorɔn mu. Lithium batere pɛ nea ɛne eyi bɔ abira. Wobɔ voltage target no na wogyae. Lithium charger a ɛfata anaa MPPT controller pa a ɛwɔ lithium profile bɛtwa no yiye. AGM charger bɛtra hɔ apia current nnɔnhwerew pii.
Victron, Renogy, EPever-dodow no ara a ɛfata charge controllers wɔ lithium presets mprempren. Fa wɔn di dwuma.
BMS no Nsiesie Biribiara
Lithium batere biara wɔ batere a wɔde di dwuma ho nhyehyɛe. Nnipa pii susuw sɛ BMS no ma battery no yɛ nkwaseasɛm. Ɛnyɛ saa.
BMS no yɛ ahobammɔ akyigyina. Sɛ voltage kɔ soro dodo a, ɛtwa pack no mu. Eyi bɔ obi ho ban fi ɔhyew a guan ne ogya ho. Nanso BMS akwantu a wɔtaa tu no da so ara si nkwammoaa no so dua. Bere biara a wobɛbɔ saa ɔdan no atifi no, nneɛma bi sɛe ansa na cutoff no abɔ mu BMS no mma wo RV no nhyew. Ɛmma wo battery no nkɔ so nyɛ papa.
Mahu battery a wɔde fi amannɔne ba a ne bo nyɛ den a BMS cutoffs a wɔde ahyɛ 15.2V anaa nea ɛboro saa. Ɛno yɛ akyiri dodo. Edu bere a BMS no yɛ adwuma no, na nkwammoaa no atra tebea a wɔde ahoɔden a ɛboro so mu dedaw.
Ɔhyew Ma Ɛyɛ Kɛse
Overcharge damage yɛ ntɛmntɛm bere a ɔhyew. Batere a ɛyɛ hyew a wobɛbɔ asen ne ahoɔden anohyeto no nye sen sɛ wobɛyɛ ade koro no ara wɔ dan mu hyew mu. Awɔw bere mu a wɔde besisi engine dan mu anaa mmeae a mframa nni mu no yɛ den kɛse. Sɛ wo battery bay no bɔ 100℃F daa a, mfomso a wubenya no so tew.
BMS unit ahorow bi wɔ ɔhyew a wɔde tua ho ka. Wɔn a wɔn bo nyɛ den no mu dodow no ara nyɛ saa.
Ɔhaw a Wobɛtra Ase
Set wo charge voltage no yiye fi da a edi kan no. Wɔ LiFePO4 batere dodow no ara fam no, 14.2-14.4V yɛ botae pa ma bulk charging ne 13.6V anaa nea ɛte saa ma float. Hwɛ wo manufacturer’s specs efisɛ brand ahorow bi tu mmirika soronko kakra. Battle Born kamfo kyerɛ sɛ wɔmfa 14.4V nni dwuma. Renogy ka sɛ 14.2V. Wɔn baanu nyinaa yɛ adwuma yiye.
Mma nnye charger no nni wɔ adaka no mu. Mahu unit foforo koraa a factory nhyehyɛe a na ɛnteɛ kɛkɛ. Fa simma anum fa multimeter na hwɛ sɛ nea ɛrekɔ so ankasa wɔ terminals no so.
Sɛ woretu mmirika solar a, hwɛ sɛnea wo absorb time nhyehyɛe no. Lithium batere dodow no ara nhia sɛ wɔde bɛtwe bɛboro simma 20{3}}30. Ebinom nhyehyɛe yɛ adwuma yiye a zero absorption bere-kɛkɛ bɔ voltage na dan kɔ float.
Overcharge nyɛ nea ɛyɛ den. Fa voltage no sie baabi a ɛfata na battery no bɛtena hɔ. Bu w’ani gu so na wobɛtɔ pack foforo wɔ mfe abien mu sen sɛ wobɛtɔ du.
