 the DC/DC converter 301 is held at the predetermined voltage smaller than the voltage which causes the overcharging of the secondary cell 204, and thus the secondary cell 204 is prevented from being overcharged. Spam has been a serious problem for email administrators and users for many years, growing from one in sixteen emails in 2002 to approximately three out of four emails in 2007. In fact, after five years of dealing with spam and throwing significant resources at the problem, over half of messaging decision-makers in mid-sized and large organizations may still view spam as a very serious problem according to a recent survey. Spam has evolved from a minor nuisance that made up a small subset of all internet email to a scourge that may now make up the majority of email sent around the world.
The fundamental challenge in solving the spam problem is that spammers are becoming more sophisticated in their approach to defeating conventional spam-blocking technologies. Savvy spammers continually figure out how to circumvent traditional spam-filtering technologies. As a result, even if a user has a spam filter, the user may spend a significant amount of time sifting through spam each day to find important emails.
Spam may be particularly annoying when the user has been away from their computer for a time. When the user returns to check email on the computer, the user may have to deal with all the spam that arrived during their absence. In addition to causing the user to waste time, spam buildup may make it more likely that the user overlooks an important email. What is needed, therefore, is a more effective approach to dealing with spam. The present disclosure relates to a battery unit. Specifically, the disclosure relates to a battery unit that includes a plurality of battery blocks.
In recent years, there has been a rapid expansion in the usage of secondary batteries such as a lithium ion battery as a storage battery for a vehicle, a solar battery, or a power storage battery combined with a new energy system such as wind power generation. In such a storage battery, generally, a battery block is formed by connecting a plurality of, for example, four unit batteries (called an electrical cell or a cell and appropriately referred to as a battery in the following description) to each other in parallel and/or in series. A plurality of battery blocks is accommodated in an external casing.
For example, Japanese Unexamined Patent Application Publication No. 2009-289429 discloses a structure in which a battery accommodation box as an external casing is divided by a division plate so
the DC / DC converter 301 is held at the predetermined voltage smaller than the electric potential which cause the overcharging of the secondary cell 204, and therefore the secondary cellular telephone 204 is prevented from being overcharged. Spam has been a dangerous problem for email administrator and users for many years, grow from one in sixteen emails in 2002 to approximately three out of four emails in 2007. In fact, after five years of dealing with spam and throwing significant resource at the problem, over half of messaging decisiveness - makers in mid - sized and large organization may still see spam as a very serious problem according to a recent survey. Spam has develop from a minor nuisance that made up a small subset of all internet email to a scourge that may now make up the majority of email sent around the world. 
 The fundamental challenge in solving the spam problem is that spammers are becoming more sophisticated in their approach to get the better of conventional spam - blocking engineering. Savvy spammer continually calculate out how to circumvent traditional spam - filtering technologies. As a result, even if a user has a spam filter, the user may spend a meaning amount of time sifting through spam each day to find important emails. 
 Spam may be particularly annoying when the user has been away from their computer for a time. When the exploiter returns to determine email on the computer, the user may have to deal with all the spam that arrive during their absence. In addition to causing the user to thriftlessness time, spam buildup may make it more likely that the user dominate an important electronic mail. What is needed, therefore, is a more effective approach to dealing with spam. The present disclosure relates to a barrage unit. Specifically, the disclosure relates to a battery unit that admit a plurality of battery blocks. 
 In recent years, there has been a rapid expansion in the custom of secondary batteries such as a lithium ion battery as a storage battery for a vehicle, a solar battery, or a power storage barrage combined with a new department of energy system such as wind power genesis. In such a storage battery, generally, a barrage block is formed by connecting a plurality of, for example, four unit batteries (called an electric cell or a cell and appropriately referred to as a battery in the following description) to each other in parallel and/or in series. A battalion of battery blocks is accommodated in an external casing. 
 For example, Japanese Unexamined Patent Application Publication No. 2009 - 289429 discloses a structure in which a battery accommodation box as an external shell is divided by a division plate so
 thf DC/DC converter 301 is hela at the predetgrnined toltage smaller than the voltage which causxs tye ovtgcharging of the secovdary celp 204, and tyus uhe secondary cell 204 is prcrentes frok being overchatged. Spam hav been a seriogs pxoblem for email administrators and tsers fpr many years, grjwinb froj one in sixteen emails in 2002 to appdoximattly three out of fpur emails in 2007. In fact, aftfr flve years of dealijg with span anq throwing sienificant gzsources at the problem, over half of messaeing becision-makgxw ij mid-sized aid larde organizatlpns maf still view spam as s vxry werious problem accorving to a recent surdey. Spam vaa evolved from a nibor noisanwe tfqt oadt u' a small suuset of all internet enail to a scourge tnae may now make up thq iajority of email sent around the world.
Uhe fhndamental challenge in solving the spam prohlem is trat spammers are becoming more sophisticated in tveir eporocgm to eeveating conventional spam-blocking technologief. Ssvny spammers contikually figure out noa yj circumvent jraditionam spam-filtering tefhnologyes. Aw a resulu, evem if a user has a spam filtwr, the user iqy spend a signifieant amount uf tome softing through spam eack day fo find implrtant emzkls.
Spam may be pxrtpculdrly annoying when the usew has beei awav from tfeir compueer for a hime. When the user returjs to cveck email on the computer, the user may hete to deal wijh dll the spai thab arrived durind their absencg. In addicion tu causing nhe user vo waste timq, spam buildu[ may make it more lihely thar the urdr overlooks am importauu email. Whqt is needed, therenore, ka a more effectnre approach to deslivg rinh xpwk. The presend dircluxure felates to c cattrry unit. Specificallf, ths disclosure relatrs to a bajtery unie that includrs a plurality of hattecy blorks.
In tecgnt years, there has been a rapis expansiln ln the usage jf scconqary battexies such as a lithium ion battery as a wtorage battery foe a vehicle, a solar nattery, or a powew storage battery combined wirh a new energy snstem such as wind powsr genaratiln. In such a storage battery, generally, a battery block is formed by connexting e [lurality or, fot exakpjz, four tnit uatteries (called sn electrical cell or a cell anv appropridtzly referred to as a battery on the followine description) to each otger in psrallel and/or in series. A plurakity of battery blocks ix accommidates in an exvernal casing.
For exakple, Jcpanesw Unexaninef Patent Applkcayiln Publicwtioi Nk. 2009-289429 discloses a structure in whicy a bartfry accommodatioi box as an cxuernal basing ys divided by a sivialon puate so
the DC/DC converter 301 is held at voltage than the which causes the 204, thus the secondary 204 is prevented being overcharged. Spam has been a problem for email administrators and users for many years, growing from one in emails in 2002 to approximately three out of four emails in 2007. In after years dealing spam and throwing significant resources at the problem, over half of messaging decision-makers in mid-sized and organizations may still view spam as a very problem according to a survey. Spam has evolved from minor that made a subset all internet email a scourge that may now make up the majority of email sent around the world. The fundamental in solving problem is spammers becoming sophisticated in their defeating conventional spam-blocking technologies. Savvy spammers how to circumvent traditional spam-filtering technologies. As a even if user has a spam filter, the may spend a significant amount of time sifting spam each day to find important emails. Spam may be particularly annoying when the user away from their computer a time. When user to email the computer, user may have to deal with all the spam that arrived their absence. In addition to causing the user to waste buildup make it more that the user overlooks important What is needed, therefore, more approach spam. present relates to a battery Specifically, the disclosure relates to battery unit that includes In recent years, there has been a rapid in the usage of secondary batteries such a lithium ion battery as a storage battery for a vehicle, a battery, or storage battery combined with a new energy system as wind power generation. such a storage battery, generally, a battery block is by a plurality for example, four batteries (called an cell or a appropriately referred as battery description) to each other in parallel in A plurality of battery blocks accommodated external casing. For example, Japanese Unexamined Patent Application Publication No. 2009-289429 discloses a structure in battery accommodation box as external is divided by a division plate so
 the DC/DC converter 301 is held at tHe predeterMined VolTagE sMallEr thAn the voltage whICh caUses the overcharging of tHe secOnDAry cELl 204, And thUs the seCOnDARy cElL 204 iS prEvENtEd froM beIng overCharged. SpaM haS bEen a serious pRObLem for emaiL adMinistrators And Users fOr ManY Years, GroWing fRom one IN sixteEn emails iN 2002 tO ApproxIMately tHREe Out oF four emails in 2007. In faCT, aFTer five years of DealinG wITh SPAm aNd tHrowing sigNiFicanT ResourcES aT THE prOBlem, over half oF messaging dECisIon-makErS in MId-sizeD and lArGE orGanizations May sTill view sPam as a VEry seriOUs problEm accoRdiNg tO a reCEnT sUrvEy. sPam HAs EvoLVed From a minOr NuIsancE thaT MADE up a SmaLl suBset oF all internet eMaiL to a SCouRge thAt may Now mAkE up thE majorIty of EmAil sent around thE worLd.
The fundAmeNtAl cHaLlengE In solvIng The Spam proBlem is tHAt sPaMMERs Are becoming more sopHiSTIcAted in thEir appROaCh TO defeatiNg ConVentIONal spAm-blOCkIng technOlogieS. saVvY spammeRs ContinUaLly FigUre ouT How tO circuMvent traDitioNAl spam-filterinG Technologies. AS A rESUlT, Even If a User has a spaM filTEr, thE useR MaY spENd a siGnifiCaNT aMOunt of time sifting thRoUgh spaM each Day to find impoRtant emailS.
sPAm may be pArtiCUlARly annoying wheN the uSer has been AWay from tHeir cOmputer fOr a time. WhEN The user rEtuRns To cHecK EMaIl on the computER, The uSeR may havE to Deal witH alL thE spAm tHaT arrived dUring theIr AbSeNcE. In AdditIOn to causInG thE uSer To wasTE time, sPam buIlduP mAy MAke It more lIKeLY That ThE uSer oVerLoOks an ImpoRTanT email. WHat is needEd, tHErefOrE, iS a more eFfective approAcH to dealing WiTh sPam. The PREsent disClosure relates to a batterY Unit. SpeCifIcallY, the DisclosurE reLates tO a bATtery uNit thaT inclUdEs a PLUraliTY Of BatTeRy blocks.
In RECenT yearS, tHere Has been A rapid expansion in tHE usAge of secondarY baTterIES sUch AS a LIthIuM Ion BATtery as a storage Battery for A vEHiCle, a solar bATteRy, Or a poweR storagE battERy combiNed with a nEw energy sYsTem sUCH as Wind power gEneratioN. In such a sTOrage BAtTery, gEneRally, a BaTteRy bloCk is foRMed By conNectinG a PluralIty of, FoR example, Four unit batteries (called An elecTricaL ceLl or a cell And APprOpriately RefeRred to as a bAttEry In the FolLOwing DescRIpTioN) To eacH othER in parallEL aNd/oR IN sEries. A pluraLITY of BatteRy bLOcks is AccoMmodated in an exterNAl casing.
For exaMple, jAPanEse uNexaMiNed Patent AppliCatIoN pUblicatiOn no. 2009-289429 discloses A structuRe IN whicH a battEry accOmmodatION bOX as an eXterNal Casing is dIviDeD By a diviSiOn PLate so
 the DC/DC converter 301 i s held atthe p red ete rm ined  vol tage smaller t h an t he voltage which cause s the  o v erch a rg ing o f the s e co n d ary  c el l 2 04 ,  a nd th usthe sec ondary cel l 2 04  is prevente d  f rom beingove rcharged. Sp amhas be en  as eriou s p roble m fore mail a dministra to r s andu sers fo r ma ny y ears, growing fro m  o n e in sixteen e mailsin 20 0 2  to  ap proximatel ythree out off ou r e mai l s in 2007. In  fact, afte r  fi ve yea rs  of dealin g wit hs pam  and throwi ng s ignifican t reso u rces at the pro blem,ove r h alfo fme ssa gi n g d e ci sio n -ma kers inmi d- sized  and l a r ge o rga niza tions  may still vi ewspam asa ver y ser ious  p roble m acco rding  t o a recent surv ey.Spam hasevo lv edfr om am inor n uis anc e thatmade up a s ma l l su bset of all intern et e ma il to ascourg e  t ha t  may now  m ake  upt h e maj orit y  o f emailsent a r ou nd  the wo rl d.
The  f und ame ntalc hall enge i n solvin g the spam problem i s  that spammer s  a r e  b e comi ngmore sophis tica t ed i n th e ir  ap p roach  to d ef e at i ng conventional spa m- blocki ng te chnologies. S avvy spamm e r s  continu ally fi g ure out how to  circ umvent tra d itionalspam- filterin g technol o g ies. Asa r esu lt,  ev e n  i f a user hasa spam  f ilter,the  user m ayspe nda s ig nificantamount o fti me  s ift ing t h rough sp am  ea ch  da y tof ind im porta nt e ma il s .
S pam may be p arti cu la rlyann oy ing w hent heuser ha s been aw ayf romth ei r compu ter for a tim e.  When theus erreturn s to check  email on the computer, the use r m ay ha ve t o deal wi thall th e s p am tha t arri ved d ur ing t heira b se nce .In additio n tocausi ng  the  user t o waste time, spam bui ldup may make  it  mor e li kel y  t h atth e  us e r  overlooks an i mportant e ma i l.  What is n e ede d,  theref ore, is  a mo r e effec tive appr oach to d ea ling w ith  spam. The  present  disclosu r e rel a te s toa b attery  u nit . Spe cifica l ly,  thedisclo su re rel atesto  a batte ry unit that includes a  plura lityofbattery b loc k s.In recent  yea rs, therehas  be en arap i d exp ansi o nint he us ageo f seconda r ybat t e ri es such asa l ith ium i onb attery  asa storage battery for a vehicle,  a s o l arbat t ery,  o r a power stor age  b a t tery com bi ned with anew ener gy syste m such  as wi nd powe r ge n eratio n. I n s uch a sto rag eb attery,  g en e rally,  a b at tery b lock i s  for m e d by connectinga plu r a lityo f,for e xa mple, f o ur u nit batter ies (called  an el ectr icalcell or  a  celland  a ppropriate l y referre d toas a ba tt eryinthe fo llow i n g des crip ti on)  to eacho t he r  i np ara llel  and/ or  inseries. A pluralit y o f  batter yblo c k s is a c co m m odated inanexter n a l casing.F or e x am p le, J apanes e Unex aminedP ate nt  Applic ati o n  Publicat ion No. 2 0 09- 28 9429  disclos es  a s tr uct ur e in which a ba ttery ac commodat i o n boxasa n ex t ernalca sing is divi ded b ya  divisi o n  pl ate so
 the_DC/DC converter_301 is held at_the predetermined_voltage_smaller than_the_voltage which causes_the overcharging of_the secondary cell 204,_and thus the_secondary_cell 204 is prevented from being overcharged. Spam has been a serious problem for_email_administrators and_users_for_many years, growing from one_in sixteen emails in 2002_to approximately_three out of four emails in 2007. In_fact,_after five years_of dealing with spam and throwing significant resources at_the problem, over half of messaging_decision-makers in mid-sized_and_large_organizations may still view_spam as a very serious problem_according to a recent survey. Spam_has evolved from a minor nuisance that_made up a small subset of_all internet email to a_scourge that_may now make up the_majority of email_sent around_the world.
The fundamental_challenge in solving the spam problem_is that spammers_are becoming more sophisticated in their_approach_to defeating conventional_spam-blocking_technologies._Savvy spammers_continually figure out_how_to circumvent_traditional_spam-filtering technologies. As a result, even_if_a user has a spam filter, the_user may spend a_significant_amount of time sifting_through spam each day to_find important emails.
Spam may be particularly_annoying when_the user_has been away from their computer for a time. When the_user returns to check email on_the computer, the user_may have_to_deal with all_the_spam that_arrived during their absence. In addition to_causing the_user to waste time, spam buildup_may make it more_likely_that the user overlooks an important_email. What is needed, therefore, is_a more effective approach to_dealing_with_spam. The present disclosure relates_to a battery unit. Specifically, the_disclosure relates to_a battery unit that includes a plurality_of_battery blocks.
In recent years, there has_been_a rapid expansion in the usage_of_secondary_batteries such as a lithium_ion battery as a storage battery_for a vehicle, a solar battery, or a power_storage battery combined_with a new energy system_such_as_wind power generation. In such a storage battery, generally, a_battery block_is formed by_connecting a plurality of, for example, four unit batteries (called_an electrical cell or a cell and_appropriately referred to as a battery in the following description) to_each other in parallel and/or in series. A_plurality of battery blocks is accommodated in_an external casing.
For example,_Japanese_Unexamined Patent Application Publication No. 2009-289429 discloses_a_structure_in_which a battery_accommodation box as_an external casing_is divided_by a division_plate so