The Lightwave 12V 18Ah Battery is in stock at Mascom International, priced at KSh 5,100, brand new and sealed, sold under the code LW 12V 18AH. It is a 12-volt sealed lead-acid block with an 18 amp-hour capacity, built by Lightwave, the same maker behind the UPS units on our shelves. Sealed means the acid is locked inside the casing, so the battery never needs water topping up and will not spill when installed. You can collect the Lightwave 12V 18Ah Battery from our shop on the first floor of the Old Mutual Building, Kimathi Street, Nairobi CBD.
Built for IT technicians, office managers, solar installers and households across Kenya, the Lightwave 12V 18Ah Battery handles the most common UPS failure: a worn-out battery inside a working unit. When the alarm starts beeping within seconds of a KPLC power cut, the electronics are usually fine and the battery is simply spent. Swapping in a fresh 18Ah block gives the equipment its standby time back, often for far less than a new UPS. Solar users in places like Machakos, Kitui and Narok also use this size to store daytime energy for lights, phone charging and a small TV.
Unlike other electronics retailers in Kenya that sell unbranded blocks with no paper trail, Mascom International stocks the Lightwave 12V 18Ah Battery with a written warranty and a counter you can return to. It costs KSh 2,400 more than the Lightwave 12V 12Ah Battery, in exchange for half again as much stored charge. Customers across Nairobi tell us that matching the right capacity first saves a second trip. Send us your old battery's label photo on WhatsApp, visit Kimathi Street, or order the Lightwave 12V 18Ah Battery with pay-on-arrival delivery.
Common Questions About the Lightwave 12V 18Ah Battery
How much is the Lightwave 12V 18Ah Battery in Kenya?
The Lightwave 12V 18Ah Battery costs KSh 5,100 brand new at Mascom International in Nairobi CBD. The price includes a 6-month warranty against manufacturing defects and pay-on-arrival delivery anywhere in Kenya. For smaller UPS units, the Lightwave 12V 7Ah Battery sells for KSh 2,250 and the 12Ah for KSh 2,700. Buying several blocks for a larger unit or a solar bank? Ask our team on WhatsApp about the total before you order, so you know the full cost upfront.
Will the Lightwave 12V 18Ah Battery fit my UPS?
The Lightwave 12V 18Ah Battery suits larger UPS units, inverters, solar setups and similar 12V systems that take an 18Ah block. Check the label on your current battery: it should read 12V and 18Ah, or the manual should list that size. The connection type also matters, because 18Ah blocks can come with different terminals. Send a clear photo of your old battery's terminals and label on WhatsApp, and Mascom International will confirm the match before you pay. That one step avoids most returns.
Should I buy the Lightwave 12V 18Ah Battery or the 12Ah version?
Buy the Lightwave 12V 18Ah Battery when your equipment is designed for an 18Ah block, and the 12Ah only when the manual specifies 12Ah. The 18Ah stores half again as much charge, so a solar kit or inverter runs longer between charges. It costs KSh 5,100 against KSh 2,700 for the 12Ah. The two blocks also differ in physical size, so a smaller 12Ah compartment will not hold the 18Ah. Never mix capacities within one battery bank; it shortens the life of both.
How does the Lightwave 12V 18Ah Battery cope with Kenyan heat and frequent power cuts?
Heat and deep daily discharges are the two main things that shorten the life of any lead-acid battery, including the Lightwave 12V 18Ah Battery. In hot towns such as Mombasa, Garissa or Lodwar, mount it in a shaded, ventilated spot away from metal roofs. Where KPLC cuts happen several times a week, avoid running the battery completely flat each time. Recharging it fully after every outage keeps the plates healthy. Treated this way, it serves reliably through many charge cycles.
How much energy does the Lightwave 12V 18Ah Battery store?
The Lightwave 12V 18Ah Battery holds about 216 watt-hours of energy on paper, worked out as 12 volts multiplied by 18 amp-hours. In practice you get less, because lead-acid batteries last longest when not drained fully, and inverters lose some energy as heat. As a rough guide, a 20W LED lighting load draws far less than this block can supply in an evening. Tell us what you plan to run, and we will give you an honest estimate rather than a headline number.
Can I connect two Lightwave 12V 18Ah Batteries together?
Yes, two or more Lightwave 12V 18Ah Batteries can be wired together, and many larger UPS units and inverters use them this way. Wiring in series raises the voltage, giving 24V from two blocks, while wiring in parallel keeps 12V and doubles the capacity. Your equipment decides which method you need, so follow its manual or ask a qualified technician. Always use blocks of the same capacity and age in one bank. Mascom International can supply matched pairs from the same stock.
Who should buy the Lightwave 12V 18Ah Battery, and who should skip it?
The Lightwave 12V 18Ah Battery is for anyone replacing a worn 18Ah block, building a small solar lighting kit, or running an inverter that takes this size. It is not for smaller UPS units built around 7Ah or 9Ah blocks; the Lightwave 12V 7Ah at KSh 2,250 or 9Ah at KSh 2,850 fits those. Skip it too for a car or motorbike, because starting an engine needs a cranking battery built for short, heavy bursts of current.
How do I know my old battery needs replacing?
A UPS battery usually needs replacing when the unit beeps and shuts down within seconds of a power cut, even after a full night on charge. Other signs include a swollen or cracked casing, a strong smell, or a battery more than a few years old. Solar users notice lights dimming much earlier in the evening than before. If you are unsure, bring the unit or the battery to Mascom International on Kimathi Street, and we will help you decide whether the Lightwave 12V 18Ah Battery is the fix.
Technical Specifications
Core Function
- 12-volt nominal voltage — the standard single-block voltage used by most UPS units, inverters and solar charge controllers.
- 18Ah capacity — the amount of charge the block holds; higher amp-hours mean longer support from one charge.
- About 216 watt-hours of stored energy on paper, from 12 volts multiplied by 18 amp-hours.
- Built for standby and cyclic use, meaning it can sit on charge for months or charge and discharge daily.
- Supplies power the moment mains or solar input stops, so connected equipment carries on without restarting.
- Model code LW 12V 18AH — quote it on WhatsApp when ordering or claiming warranty so we match the right stock.
- Brand new and sealed, with no previous charge cycles, so you start with the full capacity of the block.
Compatibility
- Suits larger UPS units, inverters and solar setups that are designed to take a 12V 18Ah block.
- Also fits similar 12V systems such as alarm panels, emergency lighting and gate motor backups using this size.
- Terminal styles vary between 18Ah blocks, so confirm the connector type on WhatsApp before you order.
- Two blocks wired in series give 24V for equipment that needs it; check your manual first.
- Wiring in parallel keeps 12V and adds capacity, a common setup in small home solar banks.
- Match capacity and age within one bank; mixing an old and new block wears the fresh one faster.
- Not a vehicle starting battery — car and motorbike engines need a cranking battery built for high bursts.
Build
- Sealed lead-acid construction — the acid is held inside a closed casing, so nothing leaks during normal use.
- Maintenance-free design means no water topping up, no acid checks and no specialist servicing for its whole life.
- Valve-regulated casing releases small amounts of gas safely, so the block can sit indoors in a ventilated spot.
- Can be mounted upright in a cabinet or compartment, matching how most UPS and inverter enclosures hold batteries.
- Keep it away from direct sun and hot roofs, since heat is the main cause of shortened battery life.
- Store spare blocks charged, and recharge them every few months, so they are ready when you need them.
Inclusions
- One Lightwave 12V 18Ah Battery block, brand new and sealed in its original packaging.
- Arrives with a factory charge, though a full charge before first use gives the best start to its life.
- Connecting cables and terminal hardware are not promised; ask on WhatsApp if your setup needs them.
- Your old battery's leads and brackets can usually be reused when the terminal type matches.
- Sold singly at KSh 5,100, so you can buy exactly the number of blocks your equipment needs.
- Backed by a written 6-month warranty from Mascom International with a receipt you keep.
Package Contents
The Lightwave 12V 18Ah Battery comes as a single block, brand new and sealed in its original packaging. Nothing else is promised in the box, so plan to reuse the leads and brackets from your old battery if the terminals match. If your installation needs new cables, ask our team on WhatsApp before ordering and we will advise on what fits. Give the battery a full charge in your UPS, inverter or solar controller before relying on it during an outage.
Warranty
The Lightwave 12V 18Ah Battery carries a 6-month warranty through Mascom International as a replacement part, covering manufacturing defects under normal use. It does not cover damage from overcharging, physical impact or incorrect wiring. Claims are handled at our Nairobi CBD service desk on Kimathi Street; bring the battery and your receipt.
Where to Buy the Lightwave 12V 18Ah Battery in Kenya
Collect the Lightwave 12V 18Ah Battery from Mascom International, Old Mutual Building, First Floor Room 4, Kimathi Street, Nairobi CBD. We are open Monday through Saturday, 9:00 AM to 7:00 PM. Bring your old battery along, and we will compare its label and terminals with the new block at the counter before you pay.
For questions or orders, contact us here:
- Phone/WhatsApp: +254 708 852 521
- Email: info@mascomintl.com
- Website: www.mascomintl.com
Every order is pay-on-arrival across all 47 counties. Customers in Nairobi and its environs get their battery the same day, and buyers in Meru, Kakamega, Kericho, Naivasha and other major towns receive theirs the next business day. Mandera, Wajir, Marsabit, Lamu, Tana River, and Turkana receive delivery within 2-3 business days.
Each block is covered by the 6-month warranty above. You can count on clear compatibility advice, a fixed honest price and a real shop to come back to after purchase.
