Lithium Battery Wholesale

Shenzhen Unitek Technology Co., Ltd. is a battery distributor and pack supplier in Shenzhen, Guangdong, China. This site gathers its battery families in one place for wholesale inquiry: lithium-ion cells, coin cells, nickel-metal-hydride cells, dry and alkaline cells, LiFePO4 and lead-acid families, and battery packs. Each family page states what it covers, what it holds back, and what to ask for next.

The specification tables on this site are brand-owner catalog data carried on the distributor's brand pages. Panasonic, Maxell, and Duracell tables are labeled with the brand owner wherever they appear, and they are never presented as cells manufactured by Unitek. Where an archived table is incomplete or its columns do not align cleanly, this site publishes only the legible part and holds the rest back.

Two families on this site rest on archived listings rather than live re-checks: the LiFePO4 pack category and the lead-acid lines. Their pages give category existence and model names as listing labels only, with no specification figures, and buyers should confirm current availability, datasheets, and specifications for any required model before ordering.

Every page on this site is written for wholesale inquiry. Use the inquiry form on the contact page to ask about a family, a listed name, or an ordering question, and confirm all figures, variants, and requirements before ordering. Certificates available upon request.

Coin cells deserve a closer look than their size suggests. A coin model differs from its neighbors by diameter, height, chemistry, and tabbed or untabbed form, and the catalog tables on this site give those distinctions row by row. A buyer who orders by diameter alone may still miss the chemistry or the form, so the inquiry should name the model in full.

Cylindrical cells deserve the same care. The CR cylindrical range and the rechargeable 18650, 21700, and 22700 series share a cylindrical form but not a chemistry, a voltage, or a use family, and this site keeps their pages separate for that reason. A cylindrical inquiry should name the series and the model, not just the form. The same rule applies to packs: a pack inquiry should name the configuration string as listed, and ask the supplier to confirm it, rather than reading a specification off the string.

Battery families and guides on this site

• About Unitek — Distributor and pack supplier identity, location at city level, and the questions this site leaves open.
• Wholesale inquiry — The inquiry form for every battery family on this site.
• Lithium-ion batteries — The lithium-ion family at hardware level, covering coin, cylindrical, and pack branches.
• CR coin batteries — Panasonic catalog data for CR coin cells, brand-attributed, with dimensions and capacities.
• BR lithium batteries — Panasonic catalog data for BR coin and cylindrical cells, brand-attributed.
• Rechargeable coin cells — Panasonic VL rechargeable coin data and the ML2020 model only, brand-attributed.
• Cylindrical lithium batteries — Panasonic catalog data for CR2, CR123A, 2CR5, and CR-P2, brand-attributed.
• 18650 batteries — The 18650 family at family level: model names and nominal voltage only, no per-model capacity table.
• 21700 batteries — The 21700 and 22700 model names with legible dimensions, brand-attributed, no capacity claims.
• NiMH batteries — The nickel-metal-hydride family at hardware level, brand-attributed.
• NiMH BK series — Panasonic BK automotive and standard tables, brand-attributed, with one model's capacities held back.
• Dry cell batteries — The dry-cell family at hardware level, pointing to the alkaline page for the tables.
• Alkaline batteries — Panasonic, Maxell, and Duracell alkaline tables, brand-attributed.
• 9V batteries — 9V cells from the Maxell and Duracell tables, brand-attributed.
• D batteries — D-size cells from the Panasonic, Maxell, and Duracell tables, brand-attributed.
• LiFePO4 battery packs — A conditional archived listing: category existence and model names as listing labels only, no spec figures.
• Lead-acid batteries — A conditional archived listing: BP, EP, and UT-POWER model names as listing labels only, no spec figures.
• Sealed lead-acid batteries — The sealed lead-acid branch at family level, model names only, no spec figures.
• Lithium battery packs — Lithium pack listing strings as listing labels only, never expanded into spec tables.
• Rechargeable battery packs — Rechargeable pack listing strings as listing labels only.
• Custom battery packs — Custom pack inquiry wording only; confirm capabilities before ordering.
• Energy storage battery packs — Energy-storage pack listing strings as listing labels only.
• OEM battery packs — OEM inquiry terms only; no capability claimed as fact.
• Key fob batteries — Remote keyless entry application page; no new model specification.
• Button cell batteries — Overview page linking the coin-cell branches; no specs on this page.
• Panasonic batteries — Distributor-carried Panasonic brand framing; every spec brand-attributed.
• Wholesale battery supply — B2B wholesale inquiry page; no prices, quantities, or timeframes.
• Guide: CR vs BR coin cells — CR versus BR chemistry and application comparison from the catalog tables.
• Guide: 18650 vs 21700 — Cylindrical family comparison at family level; per-model capacities are held back.
• Guide: NiMH vs alkaline — NiMH BK versus alkaline LR comparison from the catalog tables.
• Guide: Lead-acid vs LiFePO4 storage — Conditional family and application comparison only; no spec figures.

How this site attributes its specifications

Shenzhen Unitek Technology Co., Ltd. is a battery distributor and pack supplier. The specification tables on this site reproduce brand-owner catalog data carried on the distributor's brand pages: Panasonic, Maxell, and Duracell tables are labeled with the brand owner on every page, and they are never presented as specifications manufactured by Unitek.

Where a table is incomplete in the archived extraction, this site says so and publishes only the legible part. One NiMH model's capacities are held back because the archived columns read in an inverted order, and the 18650 per-model capacities are held back because the archived columns do not align cleanly. Model names are published; the held figures are not.

Battery pack configuration strings that appear on this site, such as a voltage and amp-hour string from a listing, are listing labels only. They are never expanded into specification tables, and no pack figure should be read off a listing string.

What this site leaves out, and why

No founding year is stated anywhere on this site. The records hold an archived company history, but the live site could not be re-checked for this build, so no year is published as a headline fact.

No headcount, factory-area, or capacity figure is stated anywhere on this site. The records give conflicting figures for headcount and single-source self-statements for area and capacity, so none of them is published as a fact.

No street-level address is published on this site. The finer address details in the records do not agree across eras, while the city-level location does, so the location is given at city level only and no building, floor, or street detail appears in any page, caption, or footer.

No certificate, permit, or authorization wording appears on this site beyond the single generic line that documentation is available on request. No certificate document was examined for this build, and no authorization document image is published. One authorization document seen in the records carries a period that has already ended, and its currency is unconfirmed, so no current authorization is claimed for it.

No prices, quantities, or timeframes are published on this site. Wholesale inquiry here means asking about a family or a listed name and confirming the commercial terms directly, not reading them off a page.

No factory photograph is published on this site, and no image on this site is presented as a factory, workshop, or production view.

No contact-person name is published on this site. The only contact details that appear anywhere are the telephone number and email address on the contact page, taken from the official site's own consistent listings.

Battery families at a glance

Coin cells are the smallest cells on this site and the most model-sensitive. The CR range covers manganese-dioxide coin cells in many diameters and heights, the BR range covers poly-carbonmonofluoride coin and cylindrical cells, and the VL and ML ranges cover rechargeable coin cells for memory backup. Each range has its own page, and each page carries its brand-attributed catalog table.

Cylindrical cells divide into primary and rechargeable branches. The primary branch covers CR2, CR123A, 2CR5, and CR-P2 types, with capacities and dimensions from the catalog data. The rechargeable branch covers the 18650 series at family level only, with per-model capacities held back, and the 21700 and 22700 series with legible dimensions and no capacity claims.

Nickel-metal-hydride cells are rechargeable 1.2 V cells, and their pages divide into an automotive backup pair and a standard range. The standard range table gives rated and typical capacities side by side, with one model's capacities held back because the archived columns read in an inverted order. The capacity basis for the whole range is stated on the series page and should be read with every figure taken from it.

Dry and alkaline cells cover the familiar D, C, AA, AAA, and 9V sizes across three brand tables. Panasonic, Maxell, and Duracell rows sit on the alkaline page with their brand attribution intact, and the two-column Duracell rows are shown as two columns rather than collapsed into a single invented value. The dry-cell family page frames the question; the alkaline page answers the size question.

Battery packs are described on this site by listing strings only, never by specification tables built from those strings. Lithium packs, rechargeable packs, and energy-storage packs each have a page where the listing labels are given as recorded, and custom and OEM pack pages handle inquiry wording only, with capabilities to confirm before ordering.

Two families on this site rest on archived listings: LiFePO4 packs and lead-acid lines. Their pages give category existence and model names as listing labels only, with no specification figures and no product photographs, and buyers should confirm current availability, datasheets, and specifications for any required model before ordering.

Questions to put in every inquiry

Which family fits the question? A coin-cell question, a cylindrical question, a NiMH question, a dry-cell question, a pack question, and a conditional-family question each belong on a different page, and starting from the right family keeps the inquiry precise rather than general.

Which listed name, if any, is in question? A named model gets a datasheet answer; an unnamed family gets a framing answer. Where a model name exists on this site, put it in the inquiry in full, including the series letters and the size digits, so the supplier can match it without guessing.

Which variant is in question? Coin cells vary by tabbed or untabbed form, cylindrical cells vary by series, NiMH cells vary by automotive or standard range, and packs vary by configuration string. A variant left unnamed is a variant left unconfirmed.

What documentation is available on request? Datasheets, certificates, and test documentation are inquiry items on this site, not page promises. Ask for the document by name and for the model it covers, so the document matches the order rather than the family in general.

What are the ordering steps for the named item? Ordering steps, quantities, and timeframes are confirmed in writing for a named item, not read off a page. An inquiry that states the family, the listed name, the variant, and the documentation needed gives the supplier everything required for a complete written answer.

What must be re-confirmed for conditional families? For the LiFePO4 and lead-acid lines, the inquiry should ask whether the listed model is still current, whether its datasheet matches the archived listing, and what has changed. Those answers, not the archived listing itself, are what an order should rest on.

How to use this site for inquiry

Start from the family that matches the question: coin cells, cylindrical lithium, NiMH, dry and alkaline cells, LiFePO4 or lead-acid families, or battery packs. Each family has its own page, and the branches within a family have their own pages too, so a question can be put precisely rather than generally.

Where a listed name is in question, name it in the inquiry. The listed names on this site carry exactly their catalog or listing attributes and nothing more, so an inquiry that names the name and asks for the remaining figures will get a more useful answer than an inquiry that assumes figures from a family page.

Where no listed name exists, name the family and the intended use, and ask for the figures, variants, documentation, and ordering steps for a named item. Family pages frame questions; they do not answer them with figures for unnamed items.

Every inquiry page on this site ends with the same standing position: confirm the figures, variants, documentation, and ordering steps for a named item before ordering, and treat any figure that cannot be confirmed for a named item as unconfirmed rather than as a property of the family.

An inquiry that names the family, the listed name where one exists, and the exact question — fit, variant, documentation, or ordering step — is the inquiry most likely to be answered completely. An inquiry that asks only in general terms will generally receive only a general answer, which is why the inquiry card on each page lists the questions worth asking before the form itself is reached.

A repeat inquiry should restate the points that made the first inquiry answerable: the family, the listed name where one exists, the variant, and the documentation asked for. A repeat inquiry that names only the family leaves the supplier guessing which item the buyer means, while a repeat inquiry that restates the full picture gives the supplier a clean basis for confirming the repeat order.

A documentation answer that covers a family as a whole leaves the named item unconfirmed, and an ordering-steps answer that covers a family as a whole leaves the actual order unconfirmed. Ask that each answer be tied to the named items, so the documents and the steps match the order rather than the family in general.